F(x) = 2x^2 4, find f(3)
a. 22
b. 16
c. -0.5
d. 40

A. 22

Step-by-step explanation:

f(x) = 2x^2 + 4

f(3) = 2(3)^2 + 4

Do the exponent first according to PEMDAS

2(9) + 4

Multiply

18 + 4 = 22

I hope this helped!

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.