6-2 Slope-Intercept Form

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Presentation transcript:

6-2 Slope-Intercept Form

Definition The y-intercept is the point where a line crosses the y-axis. The slope-intercept form of an equation is in the form y = mx + b where m is the slope and b is the y-intercept.

Example #1 What is the slope and y-intercept of y = 3x + 1

Example #1 What is the slope and y-intercept of y = 3x + 1 slope

Example #1 What is the slope and y-intercept of y = 3x + 1 y-int

Example #2 Write an equation in slope-intercept form for a line with a slope of -4 and a y-intercept of 6. y = -4x + 6

Example #3 Graph the line:

Example #3 Graph the line:

Today’s Assignment P. 320 # 1-27 odd, 28-39 all, 41-49 odd