Question

The slope of the line that contains the points (2, -7) and (-2, 5) is -3. What is the y-intercept?

A. 11
B. 1
C. -1
D. -13

please help

Answer 1

-1

Explanation:

You want the y-intercept of the line with slope -3 through point (2, -7).

Y-intercept

The y-intercept can be found by solving the slope-intercept equation for b.

y = mx +b

b = y -mx

For the given point and slope, this is ...

b = -7 -(-3)(2) = -7 +6 = -1

The y-intercept is -1.

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