What's the equation in slope-intercept form (solved for y), when possible. through (7,3) and (3,7)

The vertex of this parabola is at (-2, 5). which of the following could be it’s equation? a. y=3(x+2)^2-5 b. y=3(x-2)^2-5 c. y=3(x+2)^2+5 d. y=3(x-2)^2+5

Look at attachment. has all info needed. need

What does x = in this equation x+3+2x=x+5