For f(x) = 2x + 1 and g(x) = x2 – 7, find (f + g)(x).

a. x2 + 2x – 6
b. 2x3 – 6
c. x2 + 2x + 8
d. 2x2 – 15

step-by-step explanation:

if x = 2 you have to find x to finish the problem

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )