Determine the quadratic function f whose graph is given. the vertex is (2,-7) and the y-intercept is -3

Can someone 50 first drop menu 0.80 or 0.75 or 1.20 or 4.00 second drop menu 4.00 or 0.75 or 0.25 or 3.75 3rd 15,6,10, or 9 4th yes or no

What are the sotions to the quadratic equation 9x^2=4

Anyone know? is appreciated! will mark brainliest if correct!