Question

find the value of the function y=3x^2 -21 when x = 4

Answer 1

[AI-generated answer — Bot GPT 3.5]

To find the value of the function y = 3x^2 - 21 when x = 4, substitute x = 4 into the equation:

y = 3(4)^2 - 21
= 3(16) - 21
= 48 - 21
= 27

Therefore, when x = 4, the value of the function is y = 27.