Question

Which of the following functions has the largest value when x= 3? Show your work.

p(x) = 2x^2 + 4x + 11
h(x) = 4x
s(x)=10x​

Answer 1

p(x)

Explanation:

Substitute x = 3 into each function and calculate the value.

p(3) = 2(3)² + 4(3) + 11 = 2(9) + 12 + 11 = 18 + 12 + 11 = 41

h(3) = 4(3) = 12

s(3) = 10(3) = 30

Thus p(x) = 41 is the largest value when x = 3