# 4.7 graphing lines using slope intercept form

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4.7 Graphing Lines Using Slope Intercept Form. Goal: Graph lines in slope intercept form. Slope - Intercept Form of the Linear Equation. m. b. y = m x + b. = slope. = y-intercept. Any linear equation which is solved for y is in slope - intercept form. - PowerPoint PPT PresentationTRANSCRIPT

4.7 Graphing Lines Using Slope Intercept FormGoal: Graph lines in slope intercept form.

Slope-Intercept Form of the Linear Equationy = mx + bm= slopeb= y-interceptAny linear equation which is solved for y is in slope-intercept form.

Find the slope and y-intercept of the following linear equations: y = 3x + 4m = 3b = 4 y = -2x - 1m = -2b = -1 y = x -94m =b =94-21-2-1 y = 5xm = 5b = 0

Write a linear equation in the form y = mx + b given the following. m = 2, b = -3m = , b = 5y = 2x - 3

+3+2-3Graph the following linear equation using slope and y-intercept.xy1) Find the slope and y-intercept.Steps2) Plot the y-intercept.m =23or m = -24) Draw line through points.3) Plot the slope.-2-3

+1-3Graph the line which passes through (-2, 1) and has a slope of -3.xy1) Plot the point.Steps2) Write slope as fractionand count off other points.m = -3 =-31or m = 3-13) Draw line through points.

+4+3Graph the line which passes through (3, 2) and has a slope of .xy1) Plot the point.Steps2) Write slope as fractionand count off other points.m =34or m = -3-43) Draw line through points.34

Write a linear equation in slope-intercept formto describe each graph. y = mx + bxyxyb = 3y = 2x + 3b = -448-62

Parallel LinesGraph the following on the coordinate plane.xyParallel lines have the same slope.

-3x -3xTell whether the lines below are parallel.1) 3x + y = 7 y = -3x + 1y = -3x + 7m = -3y = mx + bm = -3Lines are parallel!Same slope!