The solution is x = -1 or x = 7. The equation factors to (x - 7)(x + 1) = 0. When you set each factor equal to 0 you get 7 and -1. A. -2
B. 2
C. -4
D. 4

B. 2

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for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

answer: b

step-by-step explanation: