Which equation is a function of x?
0
O x=5
x=y² + 9
O X2=y
O x2 = y2 +16

The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =