Question

If f(x)=3x-formula">-4, find f(-3)

Answer 1

Answer:

$\sf f(-3) = 23$

given:

$\sf f(x) = 3x^2 -4$

to find the output, replace x with the given integer.

solve:

$\sf f(-3) = 3(-3)^2 -4$

$\sf f(-3) = 3(9) -4$

$\sf f(-3) = 27 -4$

$\sf f(-3) = 23$