Find the value of the function y=3x^2−21 when x=4

Question

.(1 point)

Answer 1

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

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

Therefore, when x = 4, y = 27.