The vertex of a parabola (point (h, k)) locates its position on the axes. The vertex serves as a Locator Point for a parabola. The other shapes you will be investigating in this course also have locator points. These points have different names but the same purpose for each different type of graph.
y = 3x2 + 5
f (x) = −(x − 3)2 − 7
Use the eTool below to view the graphs of the equations.
Click the link at right for the full version of the eTool: A2C 4-56 HW eTool