Question

Find the axis of symmetry, vertex and which direction the graph opens, and the y-int for each quadratic function

Answer 1

Part a

The axis of symmetry

Part b

The vertex

Vertex (2,3)

Part c

The graph opens downward

Part D

The y-intercept is the point where a graph crosses the y-axis. In other words, it is the value of y when x=0.

The y-intercept

`(0,-5)`

Another

The y-intercept is the point where a graph crosses the y-axis. In other words, it is the value of y when x=0.

`\begin{gathered} y=-2x^2+8x-5 \\ y=-2(0)+8(0)-5 \\ y=0+0-5 \\ y=-5 \end{gathered}`

x=0 y=-5

`(0,-5)`