Question

@Will.H

Answer 1

(f o g) (x) means f(g(x)), so replace the "x" in f(x) with the expression from g(x)
\[(f o g)(x) = \sqrt{7(x+8)}\]
that's a square root function, so only values of x that make 7(x + 8) non-negative are in the domain.

Solve this inequality to get your solution
\[7(x+8)\ge0\]

Answer 2

@Will.H

Answer 3

is -8 correct

Answer 4

G is the input of f
Resulting function is
Sqrt 7(x+8)
The smallest is -8 indeed

Answer 5

thanks

Answer 6

You welcome