Algebra 1

The graph was made using graphing software. The vertex is labeled with the coordinates, and the red line is the axis of symmetry. vertex: $y=-2x^2-10x$ $V = -b/2a = -(-10)/2(-2)$ $V = 10/-4 = -2.5$ $y=-2x^2-10x$ $y=-2(-2.5)^2-10(-2.5)$ $y=-2*6.25+25$ $y=-12.5+25$ $y=12.5$ (-2.5, 12.5) One other point on the graph: $y=-2x^2-10x$ $y=-2(0)^2-10(0)$ $y=-2*0-0$ $y=0-0 = 0$ (0,0)