Find the vertex of y = 5a - 5a +9 using the vertex formula. This problem will not accept decimal answers. * Please use fractions only. Step 1: Find the x-coordinate of the vertex Using the vertex formuia, what is the x-coordinate of the vertex for the parabola y= 5 5r +9? Step 2 Find the y-coordinate of the vertex Now that we know that the x-coordnate of the vertex is we only need to find the y-coordinate Fortunately, we know that y SarSa +9. What is the y-coordinate that corresponds to Cve the vertes of the parabola y=ha-r +9 as a point