Suppose a sculptor wants to create a parabolic arch with a height of 5 m and a width at the

Suppose a sculptor wants to create a parabolic arch with a height of 5 m and a width at the base of 8 m.
a) Determine the quadratic function that represents the arch if the vertex of the parabola is at the origin.
b) Determine the quadratic function that represents the arch if the origin is at the lower left end of the arch.