If f(x) = |2x+6|, then
a. Find f(-7).
b. Find x, if f(x) = 10.

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b

step-by-step explanation:

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this