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2 Answers

y = -3x -15

this equation is in slope intercept format.

that means that the slope is -3 and the y-intercept is -15

y = Mx + b

M is the slope

b is the y-intercept


by Level 10 User (55.7k points)
y = -3x - 15
y = mx + b
m (slope) = -3
b (y-intercept) = -15

To solve for x, change y to 0

0 = -3x - 15
+15      + 15

15 = -3x
 /3    /3

5 = x

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