Question

the functions f and g are defined as follows.

f(x)=4x - 3 g(x)=-4x^{2}-3

find f(-4) and g(5).

simplify your answers as much as possible.

f(-4)=

g(5)=

Explanation:

Step1: Substitute x = -4 into f(x)

$f(-4)=4\times(-4)-3$

Step2: Calculate the value of f(-4)

$f(-4)=-16 - 3=-19$

Step3: Substitute x = 5 into g(x)

$g(5)=-4\times5^{2}-3$

Step4: Calculate the value of g(5)

$g(5)=-4\times25-3=-100 - 3=-103$

Answer:

$f(-4)=-19$
$g(5)=-103$