Game Development Reference
In-Depth Information
5. Click the Subtract menu twice in succession. With the first click, position
the minus sign after the exponent field and level with the
x
field. With the
second click, position the minus sign before the final
x
field.
6. Click on the equal button to the right of the equation composition area.
7. Position the cursor on the top of the Cartesian plane. When it turns into
parallel bars, pull the Cartesian plane up to the bottom of the equation
composition area.
8. Now proceed to the lower-right panel. Beneath the Chart for Formula 1
button, set the X Range From control to
12. Set the X Range To control
to 12.
9. In the lower-left Chart panel, set the Zoom X and Y fields to
2.
10. Set the Width field for Chart 1 to 2.
11. Click the Chart for Formula 1 button to see your work.
To view changes in the behavior of your equation, change its values. Before
working with these values, in the Chart panel, click the controls for the X and Y
Zoom fields and set the values for both fields to
4. Then work through these
values and see how the parabola changes:
Conclusion
This chapter has allowed you to explore how quadratic equations work. A
quadratic equation is a second degree equation that generates a parabola. When
you generate a parabola using a quadratic equation, three basic possibilities exist
