Question

The table below represents a quadratic equation in the form

x2 + bx + c =0. Using the table, what is the solution

of the quadratic equation?


x 6 9 12 15 18
y 32 5 -4 5 32




x = 7 and 13
x = 8 and 19
x = 10 and 14
x = 11 and 17