Question

NEED HELP ASAP!!!!!
Find f(x) and g(x) so that the function can be described as y = f(g(x)).


y = seven divided by square root of quantity eight x plus ten.

Answer 1

Answer:

B

Step-by-step explanation:

To find $y=f(g(x))$, substitute the value of $g(x)$ into the the function f(x) instead of x.

Consider option B:

Given

$f(x)=\dfrac{7}{\sqrt{x}}\\ \\g(x)=8x+10$

So,

$f(g(x))\\ \\=f(8x+10)\ [\text{Expression } 8x+10\text{ has a role of }x]\\ \\=\dfrac{7}{\sqrt{8x+10}}$

This is exactly what you need as answer.