Given: f(x) = x-7 and h(x) = 2x + 3
Write the rule for f(h(x)).

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

the answer is

a.

x = 42

y = 10

i got it down chief.

answer is  

a.

5.56

hope you get this right.