1) slove each equation by the vertex form.
a) x2 - 5x + 2 = 0
b) 3x2 + 5x - 12 + 0
2) state three terms that mean "solution" for quadratic equations.
3) explain how you can use the graph of the quadratic function f(x) to solve the equation f(x) = 0
4) write the formula for the discriminant.
5) state the types of roots for a quadratic equation, explaining how the discriminant helps you determine the type.