Pearson Algebra 2 Common Core, 2011
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Pearson Algebra 2 Common Core, 2011 View details
3. Linear Functions and Slope-Intercept Form
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Exercise 24 Page 78

What do m and b represent in y=mx+b?

Equation: y=-1/2x-3/4
Slope: -1/2
y' -intercept:' -3/4

Practice makes perfect
Equations in slope-intercept form follow a specific format, where m represents the slope of the line and b is the y-intercept. y= mx+ bLet's rewrite our equation a little bit so that it more closely resembles this format. This will make it easier to identify the features of the equation.
-1/2x-y=3/4
-1/2x=3/4+y
-1/2x-3/4=y
y=-1/2x-3/4
y=-1/2x+(-3/4)
Below we have highlighted the slope m and y-intercept b. y= -1/2x+( -3/4) We can see that the slope is - 12 and the y-intercept is - 34.