How To Find Parabola Equation With Vertex And Y Intercept. This form is easiest to find the vertex from, since all we need to do is read the coordinates from the equation. ⇒ y = − (x − 2)2 +1 ← in vertex form.

So x intercept and y intercept are similar to finding any other x intercept, y intercept, let the other coordinate equal 0 and solve. Solve for vertex (h,k) use the formula h = − b 2a = − 20 2( − 4) h = 5 2. This form is easiest to find the vertex from, since all we need to do is read the coordinates from the equation.