Find the value of the function y = 3x^2 − 21 when x = 4.
Substitute x = 4 in the given expression:
y = 3(4)^2 - 21
y = 3(16) - 21
y = 48 - 21
y = 27
Therefore, the value of the function y = 3x^2 − 21 when x = 4 is 27.
y = 3(4)^2 - 21
y = 3(16) - 21
y = 48 - 21
y = 27
Therefore, the value of the function y = 3x^2 − 21 when x = 4 is 27.