Warmups 1. Determine the x and y intercepts of: 3x + 6y = 12 2. Find the slope and y-intercept: 4x + 3y = 6 y – 2=3(x+1) 3. Write an equation in point-slope.

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Presentation transcript:

Warmups 1. Determine the x and y intercepts of: 3x + 6y = Find the slope and y-intercept: 4x + 3y = 6 y – 2=3(x+1) 3. Write an equation in point-slope form given: (4,-1) m =3

Homework Questions?

3 forms of a line Point-Slope StandardAx + By = C Slope-Intercepty = mx + b

6-5 Graphing Linear Equations Objective: To graph a line in point-slope form.

Point-Slope Form (x 1,y 1 ) = point M = slope We are going to use these to graph!

Steps to Graph 1. Graph the point (x 1,y 1 ) 2. Use slope (as a fraction) to find your next point - rise/ run from the point Example 1: graph y – 2 = 2(x – 1)

Example 2 graph y – 1 = 3(x + 4)

Examples 3 & 4 graph

Determine the value of r… (1,3)(-2,r) m = 3

Homework Pg. 360 #17,18,19,32,33

Graphing Review Math Lab

Slope Intercept y = mx + b m = slope b = y-intercept Steps Graph y intercept Use slope to graph more points Connect points

Slope Intercept Graphing graph

Standard Form Ax + By = C Steps: Use x and y intercepts (x,0)(0,y) Connect points

Standard Graphing graph

Point-Slope Form Steps: Graph the point (x 1,y 1 ) Use to slope (m = rise/run) to graph more points Connect the points

Point-Slope Graphing graph

Homework Pg. 360 # 17, 18, 19, 32, 33