Question

The vertex of the graph of a quadratic function is (3, 1) and the y-intercept is (0, 10). Which of the following is the equation of the function?
A. y=2x^2-12x+10
B. y=-1/2x^2+3x-11/2
C. y=x^2-6x+10
D. y=2x^2-7x+4

Answer 1

has to end in a \(10\) so B and D are out

Answer 2

one way to do this is to see which of the two remaining have \((3,1)\) on the graph
plug in 3 for \(x\), see which one gives \(1\) as \(y\)