Question

What is the value of the function f(x) = 2x2 + 3 when x = 2?
7
19
11
–1

Answer 1

Plug in 2 for your x, you'll get 2(2^2)+3, which becomes 2(4)+3, 8+3, 11. 

Answer 2

11 because 2*(2^2)+3 = 2*4+3 = 8+3 = 11