Question

Let f(x) = - 10x + 9 and g(x) = x2 + 12
Find f( - 4)/g( - 4)​

Answer 1

`(49)/(28)`

Explanation:

Evaluate g(- 4) and f(- 4) by substituting x = - 4 into g(x) and f(x), that is

f(- 4) = - 10(- 4) + 9 = 40 + 9 = 49

g(- 4) = (- 4)² + 12 = 16 + 12 = 28

Then

`(f(-4))/(g(-4))` =
`(49)/(28)` =
`(7)/(4)`