Find the missing value to make the point (5, _) on the equation y = -7x^2 + 9

Answer 1

To find the missing value when x = 5, substitute x = 5 into the equation y = -7x^2 + 9:

y = -7(5)^2 + 9
y = -7(25) + 9
y = -175 + 9
y = -166

Therefore, when x = 5, y = -166. The missing value is -166.