Write the standard form of the equation of the parabola that has a vertex (7, -1) and passes through the point (5, 15). Give your answers in whole numbers.
The standard form of the equation of any parabola whose vertex is (h, k) is:
The vertex of this parabola is (7, -1)
This parabola goes through the point (5, 15) so plug in x=5 and f(x)=15
15=a(5-7)2-1, 15=4a-1, 16=4a, 4=a
Therefore the equation of this parabola is: