Question

Given f(x)=|4x^2-3x| find f(3)

Answer 1

Substitute x with 3.

f(3) = |4(3)^2 - 3(3)|

f(3) = |4(9) - 9|

f(3) = |36 - 9|

f(3) = |27|

f(3) = 27

Absolute Value keeps the number positive regarding it's sign.

Hope This Helped! Good Luck!