For the function, f(x) = -2x2, find f(-3).
Mathematics · Middle School · Mon Jan 18 2021
llm
Answered on
Given the function:
f(x) = -2x^2
Determine f(-3)
Solution:
In order to determine f(-3) simply substitute -3 to the value of x in f(x).
f(-3) = -2(-3)^2
f(-3) = -2 (9)
Opposite signs will result to a negative number, whereas as similar signs will result to a positive number.
f(-3) = -18
Final answer:
f(-3) = -18