Complete Complex Quadratic Graph Tables

Before plotting the graph of a quadratic equation, it is often helpful to draw out and complete a table first.

The x values are fixed and the corresponding y values are calculated.

 

Example

Complete the following graph table.

 

 

 

Answer

Here the x values range from -3 to +3.

 

A = x² when x = -2 so A = -2² = 4

 

B = -4 like the rest of that row

 

C = 0 + 0 + -4 = -4

 

D = x² when x = 3 so D = 3² = 9

 

E = 12 + 4 - 4 = 12

 

F = 27 + 6 - 4 = 29

 

G = 2x when x = 2 so G = 2 x 2 = 4

 

Now it's over to you!