Lesson 2.1 - Graphing Linear Equations

A REMINDER OF…

REMEMBER???

DO NOW…

TODAY Learning Target:!•  I can graph an increasing or decreasing linear relationship by creating a table and plotting the

points."•  I can recognize when a linear relationships is a horizontal line or a vertical line AND I can graph

horizontal and vertical lines from a given equation."•  I can use my graphing calculator to check my graphs and tables."!Agenda:!•  Do Now"•  Recognizing Linear Relationships"•  Activity 1: Graphing a linear relationship from a table "•  Activity 2: Using your graphing calculator to check the graph of a line or the table of a line"•  Graphing Horizontal and Vertical Lines"•  Summarize""HW: ALG. 1 – LESSON 2.1 D ON ASSISTMENTS!PROBLEM # - 1,2, 10 – 26 (EVEN), 25, 27, 28 – 32 "ON P. 46 – 47 IN YOUR TEXTBOOK."

USING THE GRAPHING CALCULATOR

I will table and graph the equation y = 2x + 5""1) Using y= button"2) Using the viewing window"3) Pressing GRAPH"4) Changing the viewing window"

GRAPHING ON PAPER, CHECKING USING CALCULATOR

GRAPHING HORIZONTAL AND VERTICAL LINES

PRACTICE …

SUMMARIZE:

Explain how you know if an equation is linear.

FROM A TABLE (NUMBERS)

DO NOW: RECOGNIZE A LINEAR RELATIONSHIP FROM AN EQUATION

NEXT: RECOGNIZE A LINEAR RELATIONSHIP FROM A GRAPH

FROM A STORY

SUMMARY: TO GRAPH A LINEAR RELATIONSHIP:

•  You must be able to use the Order of Operations correctly to evaluate a rule."

•  You must be able to plot points correctly on the coordinate plane. Remember x, then y."

•  A (unique) straight line may be drawn from any point to any other point. "

•  Every straight line can be extended indefinitely."•  Even though you only need two points to draw the unique line,

a line is comprised of an infinite number of points that are ALL solutions to the equation of the line."