Question

What are the amounts of a and b

Answer 1

a=1

b=-12

Step-by-step explanation

The function has a hole at

x=3

The function also have a vertical asymptote at

x=-4.

This implies that, the denominator of the function is

`(x - 3)(x + 4)`

`{x}^(2) + 4x - 3x - 12`

`{x}^(2) + x - 12`

Comparing this to the function in the denominator,

`{x}^(2) + ax + b`

we have

a=1 and b=-12