Question

−1/4 x^2 + 15 when x = 2.

Answer 1

To find the value of the expression -1/4x^2 + 15 when x = 2, substitute the value of x into the expression and calculate:

-1/4 * (2^2) + 15
-1/4 * 4 + 15
-1 + 15
14

So, when x = 2, the expression -1/4x^2 + 15 equals 14.