Determine if each of the following relations is a function ... · SWBAT: Graph equations of Horizontal and Vertical Lines. Graph linear equations in standard form using intercepts.

SWBAT: Graph equations of Horizontal and Vertical Lines. Graph linear equations in standard form using intercepts. Use Linear equations in standard form to solve real-life problems

Lesson 6-5

1

Do Now:

Determine if each of the following relations is a function. Explain why each is or is not a

function.

_____________________________ ______________ ________________________

SWBAT: Graph equations of Horizontal and Vertical Lines. Graph linear equations in standard form using intercepts. Use Linear equations in standard form to solve real-life problems

Lesson 6-5

2

1) Sketch the graph for each equation given, answer the following questions: Is it horizontal, vertical, or neither? Sketch the graph of this line.

a) y = 4 x = - 2

b) y = -1.5 x = 1

Using Intercepts to Graph Linear Equations

You can use the fact that two points determine a line to graph a linear equation. Two

convenient points are the points where the graph crosses the axes.

SWBAT: Graph equations of Horizontal and Vertical Lines. Graph linear equations in standard form using intercepts. Use Linear equations in standard form to solve real-life problems

Lesson 6-5

3

Using Intercepts to Graph a Linear Equation 2) Use intercepts to graph the equation 3 x + 4 y = 12. 3) Use intercepts to graph the equation x + 2 y = 6

SWBAT: Graph equations of Horizontal and Vertical Lines. Graph linear equations in standard form using intercepts. Use Linear equations in standard form to solve real-life problems

Lesson 6-5

4

Real Life Application Problems 4) You are planning an awards banquet for your school. You need to rent tables to seat 180

people. Tables come in two sizes. Small tables seat 6 people, and large tables seat 10 people. The equation 6 x + 10 y = 180 models this situation, where x is the number of small tables and y is the number of large tables.

a. Graph the equation. Interpret the intercepts. b. Find four possible solutions in the context of the problem.

SWBAT: Graph equations of Horizontal and Vertical Lines. Graph linear equations in standard form using intercepts. Use Linear equations in standard form to solve real-life problems

Lesson 6-5

5

LESSON PRACTICE #3 ,4, 8, 10, 24

USE GRAPHS PROVIDED 3. 4. 24.

SWBAT: Graph equations of Horizontal and Vertical Lines. Graph linear equations in standard form using intercepts. Use Linear equations in standard form to solve real-life problems

Lesson 6-5

6

LESSON PRACTICE ANSWER KEY