Question

If f(x) = 2x^2 +1, what is f(x) when x = 3?
O1
O7
•13
O 19

Answer 1

19

Explanation:

Plug 3 in for (x)

You'd have: 2(3)²+1

Solve. Do parentheses first so... 3²=9

You now have: 2(9)+1

Solve

18+1 = 19