In this section, you will be creating a table of values from a given graph.

You will be given the graph of a quadratic function and asked to create a table of values for it.

man juggling 2 balls labeled graph and table

Example

Use the graph shown below to create a table of values.

graph of a parabola with vertex at (-1,-9), x-intercepts at (-4,0) and (2,0), and y-intercept at (0,-8)

x y

critical attributes

-4

0

x-intercept

2

0

x-intercept

0

-8

y-intercept

-1

-9

vertex (minimum)

-3

-5

point on parabola
When picking points that are NOT critical attributes try to pick points whose coordinates appear to be integers.

1

-5

point on parabola

-2

-8

point on parabola

Click for more information.