Find the missing value to make the point (3, __) on the equation y=7x2+3

To find the missing value, we substitute x = 3 into the equation y = 7x^2 + 3.

y = 7(3)^2 + 3
y = 7(9) + 3
y = 63 + 3
y = 66

Therefore, the missing value to make the point (3, 66) on the equation y = 7x^2 + 3.