Example Activity

Explore the Function Y=AX2+BX+C

Use this activity to learn the basics the Transformation Graphing App.

Note: Reset the calculator defaults (a Ó 7:Reset..., 2:Defaults..., 2:Reset) before this performing this activity.

1.    Select the Transformation Graphing icon  and press =.

2.    Read the message on the screen and select OK.

3.    Press q to clear Y1.

4.    To quickly paste the function Y1=AX2+BX+C, press = on prompt in the empty Y1 and select the template by using the left arrow key ‹ and the right arrow keys › and = or arrow to OK and =.

Note: The SETUP softkey from the graph screen will let you control the animation of the graph. You can choose PlayPause, slow animation or fast animation.

Tip: If you enter a function using the keypad, only A-D are allowed in transform equations Y1 and/or Y2. Those letters can be found using the b key. For example, to enter the coefficient A, press b A (above the n key).

5.    Press f 4 to select 4:ZStandard. The graph screen displays automatically. The selected Y= function and the current values of the coefficients A, B, and C display on the screen. The values of A, B, and C may be different on your calculator.

6.    Press the right arrow key › to increment the value of A by the Step value (1) from 1 to 2. The graph is redrawn automatically, showing the effect of increasing the coefficient of X by step size 1 as set in the SETTINGS ([SETUP]) menu. If the coefficient A is not selected, press the down arrow key ≥ until the = sign for A is highlighted.

7.    Press the down arrow key ≥ to highlight the = sign for B. Press the right arrow key › several times (pausing briefly each time as the graph is redrawn) to observe the effect of increasing the value of B.