How do you write the equation of the quadratic function with roots 0 and 2 and a vertex at (1, 5)?
General expression for a quadratic function is y=
Roots 0, 2 means that when x=0, y=0 and when x=2, y=0 and vertex being (1,5) means when x=1, y=5. Using these values we can find out a,b and c.
We would have c=0, a= -5 and b= +10.
The required equation would be y=