Question 1085734
<font color="black" face="times" size="3">You can plot a bunch of points and connect them with a curve (parabola). To make things fast, efficient and error free, you can use technology. A graphing calculator is a great tool. The online graphing calculator given by the link below


<a href = "https://www.desmos.com/calculator/jculzblpis">https://www.desmos.com/calculator/jculzblpis</a>


The link leads to an interactive graph where you can see that the three blue points are on the red curve. So that graph in the link confirms you have the correct answer. Nice job. 


The vertex is (0.625, 4.5625)
The x value of the vertex is found by plugging a = -4 and b = 5 into the formula below
x = -b/(2*a)


Once you know the x coordinate of the vertex, you plug it into the equation y = -4x^2+5x+3 to find the y coordinate of the vertex.


The axis of symmetry is the vertical line x = 0.625, basically the x coordinate of the vertex. </font>