Question

F(x)=2x^2-6
Find f(7)

Answer 1

f(7) = 92

Explanation:

f(7) means what is the value of f(x) when x = 7

substitute x = 7 into f(x)

f(7) = 2(7)² - 6 = 2(49) - 6 = 98 - 6 = 92