Writing+the+equation,+given+the+vertex+and+another+pointSet+6

Gilad's Question Write the quadratic equation, the first point being the vertex: (5,4), (2,7) (8,3), (-1,10) (-2,0) (-4, 16)

Becca's Answer

1- y=1/3(x-5)^2+4

2. y=7/81(x-8)^2+3

3. y=4(x+2)^2

work: