Question

The y-intercept for the linear function given by y = -72 x + 13 is: b =

Answer 1

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Answer:

13

Explanation:

Compare the following equations:

y = mx + b . . . . . . . . slope-intercept form: b = y-intercept; m = slope

y = -72x +13

It should not be much of a stretch to see that b = 13, the constant in the equation.

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The y-intercept is the value of y when x=0.

y = -72·0 +13 . . . .substitute 0 for x

= 0 +13 = 13 . . . . the y-intercept; the value of b.