If f(x)=7+4x and g(x)=1/2x What is the value of (f/g)(5)?

Question

asked Mar 13, 2019 145k views

2 Answers

Thit Lwin Oo · Answer 1 · 2019-03-19T23:20:38+0000

Answer:

$\bigg(\displaystyle(f)/(g)\bigg)(5) = 270$

Explanation:

We are given the following information in the question:

$f(x) = 7 +4x\\\\g(x) = \displaystyle(1)/(2x)$

We have to find the values of
$\displaystyle(f)/(g)(x)$

$\bigg(\displaystyle(f)/(g)\bigg)(x) = (f(x))/(g(x)) = (7 + 4x)/((1)/(2x)) = 2x(7+4x)$

Putting x = 5, we have:

$\bigg(\displaystyle(f)/(g)\bigg)(x) = 2x(7+4x)\\\\\bigg(\displaystyle(f)/(g)\bigg)(5) = 2(5)(7+20)=270$

270 is the required value of
$\bigg(\displaystyle(f)/(g)\bigg)(5)$ .