117k views
1 vote
If p(x)=2x2-1, find p(-3)

1 Answer

6 votes
Given the function, p(x) = 2x^2 - 1, to evaluate p(-3), you could simply substitute -3 as the input of the function.

p(-3) = 2(-3)^2 - 1

p(-3) = 2(9) - 1

p(-3) = 18 - 1

p(-3) = 17

Therefore, p(-3) = 17.
User Aboss
by
3.9k points