Y ax - px - q. 1 to factor the quadratic equation if you can do so 2 to use the quadratic formula or 3 to complete the square. In this equation 0 c is the y -intercept of the.
That way you can pick values on either side to see what the graph does on either side of the vertex.
Ax 2 bx c 0. See the p and q in the equation. Solve an equation of the form a x 2 b x c 0 by using the quadratic formula. X 02.