Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same

Page 1 <img data-url='document/straight-line-graphs-the-gradient-and-intercept-of-a-straight-line-the-diagram-shows.html?page=1' data-page='1' class='cut-thumb lazyload' alt='Page 1: Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022013003/5f6bbd4ffa59cc5e057a2560/html5/thumbnails/1.jpg' width='140' height='200' /> Unit 4

Straight line graphs

Objectives

On completion of this unit you should be able to:

1. Plot a straight line graph from an equation.

2. Find the gradient and intercept of a straight line

3. Use straight line graphs in everyday situations.

Cook, M. and Rimmer, H. (1993),

Stafford College, Earl Street, Stafford, ST16 2QR

Page 2 <img data-url='document/straight-line-graphs-the-gradient-and-intercept-of-a-straight-line-the-diagram-shows.html?page=2' data-page='2' class='cut-thumb lazyload' alt='Page 2: Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022013003/5f6bbd4ffa59cc5e057a2560/html5/thumbnails/2.jpg' width='140' height='200' /> Page 3 <img data-url='document/straight-line-graphs-the-gradient-and-intercept-of-a-straight-line-the-diagram-shows.html?page=3' data-page='3' class='cut-thumb lazyload' alt='Page 3: Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022013003/5f6bbd4ffa59cc5e057a2560/html5/thumbnails/3.jpg' width='140' height='200' /> Page 4 <img data-url='document/straight-line-graphs-the-gradient-and-intercept-of-a-straight-line-the-diagram-shows.html?page=4' data-page='4' class='cut-thumb lazyload' alt='Page 4: Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022013003/5f6bbd4ffa59cc5e057a2560/html5/thumbnails/4.jpg' width='140' height='200' /> Page 5 <img data-url='document/straight-line-graphs-the-gradient-and-intercept-of-a-straight-line-the-diagram-shows.html?page=5' data-page='5' class='cut-thumb lazyload' alt='Page 5: Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022013003/5f6bbd4ffa59cc5e057a2560/html5/thumbnails/5.jpg' width='140' height='200' /> Page 6 <img data-url='document/straight-line-graphs-the-gradient-and-intercept-of-a-straight-line-the-diagram-shows.html?page=6' data-page='6' class='cut-thumb lazyload' alt='Page 6: Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022013003/5f6bbd4ffa59cc5e057a2560/html5/thumbnails/6.jpg' width='140' height='200' /> Page 7 <img data-url='document/straight-line-graphs-the-gradient-and-intercept-of-a-straight-line-the-diagram-shows.html?page=7' data-page='7' class='cut-thumb lazyload' alt='Page 7: Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022013003/5f6bbd4ffa59cc5e057a2560/html5/thumbnails/7.jpg' width='140' height='200' /> Page 8 <img data-url='document/straight-line-graphs-the-gradient-and-intercept-of-a-straight-line-the-diagram-shows.html?page=8' data-page='8' class='cut-thumb lazyload' alt='Page 8: Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022013003/5f6bbd4ffa59cc5e057a2560/html5/thumbnails/8.jpg' width='140' height='200' /> Page 9 <img data-url='document/straight-line-graphs-the-gradient-and-intercept-of-a-straight-line-the-diagram-shows.html?page=9' data-page='9' class='cut-thumb lazyload' alt='Page 9: Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022013003/5f6bbd4ffa59cc5e057a2560/html5/thumbnails/9.jpg' width='140' height='200' /> Page 10 <img data-url='document/straight-line-graphs-the-gradient-and-intercept-of-a-straight-line-the-diagram-shows.html?page=10' data-page='10' class='cut-thumb lazyload' alt='Page 10: Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022013003/5f6bbd4ffa59cc5e057a2560/html5/thumbnails/10.jpg' width='140' height='200' /> Page 11 <img data-url='document/straight-line-graphs-the-gradient-and-intercept-of-a-straight-line-the-diagram-shows.html?page=11' data-page='11' class='cut-thumb lazyload' alt='Page 11: Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022013003/5f6bbd4ffa59cc5e057a2560/html5/thumbnails/11.jpg' width='140' height='200' /> Page 12 <img data-url='document/straight-line-graphs-the-gradient-and-intercept-of-a-straight-line-the-diagram-shows.html?page=12' data-page='12' class='cut-thumb lazyload' alt='Page 12: Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022013003/5f6bbd4ffa59cc5e057a2560/html5/thumbnails/12.jpg' width='140' height='200' /> Page 13 <img data-url='document/straight-line-graphs-the-gradient-and-intercept-of-a-straight-line-the-diagram-shows.html?page=13' data-page='13' class='cut-thumb lazyload' alt='Page 13: Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022013003/5f6bbd4ffa59cc5e057a2560/html5/thumbnails/13.jpg' width='140' height='200' /> Page 14 <img data-url='document/straight-line-graphs-the-gradient-and-intercept-of-a-straight-line-the-diagram-shows.html?page=14' data-page='14' class='cut-thumb lazyload' alt='Page 14: Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022013003/5f6bbd4ffa59cc5e057a2560/html5/thumbnails/14.jpg' width='140' height='200' /> Page 15 <img data-url='document/straight-line-graphs-the-gradient-and-intercept-of-a-straight-line-the-diagram-shows.html?page=15' data-page='15' class='cut-thumb lazyload' alt='Page 15: Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022013003/5f6bbd4ffa59cc5e057a2560/html5/thumbnails/15.jpg' width='140' height='200' />

Straight line graphs · The gradient and intercept of a straight line The diagram shows the graphs of, y=2t+ 1, y=2x and y = 2-r - 2. The lines are parallel so, they have the same

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