Question

If f(x) = 2x^2 + 1, what is f(x) when x = 3?
O 1
o 7
O 13
O 19

Answer 1

19

Explanation:

f(x)= 2x^2 +1, x=3

f(3)= 2(3)^2 +1

f(3)= 2(9) +1

f(3) = 18 +1

f(3) =19

i hope this helps!

Answer 2

19

Explanation: