Help please

If f(x)=8x and g(x)=2x+1 find (fog)(x)

16x^2+8x

16x+1

16x+8

10x+1

(f◦g)(x) = f(g(x))

Since f(x) = 8x,
f(g) = 8g = 8(2x+1) = 16x+8

To find the composition of two functions f and g, denoted (fog)(x), you need to substitute the expression for g(x) into f(x) and simplify.

Given:
f(x) = 8x
g(x) = 2x + 1

To find (fog)(x), substitute g(x) into f(x):

(fog)(x) = f(g(x))

Replace f(x) with 8x and g(x) with 2x + 1:

= 8(2x + 1)

Now, distribute the 8:

= 16x + 8

Therefore, (fog)(x) = 16x + 8.

The correct answer is option C, 16x + 8.