Before we begin with some quadratic application problems lets review how to find key parts of a quadratic in the TI-84 calculator. Watch the video's and follow along.
When dealing with application problems, the widow must be adjusted to see the parts of the parabola needed. Another option with quadratics is to go to ZOOM #0 (FIT). This will fit the parabola to the screen, at times you may need to zoom out again.
Often these problems will actually be quicker to solve algebraically, however you may choose to find the solutions in the calculator.
Often these problems will actually be quicker to solve algebraically, however you may choose to find the solutions in the calculator.
Copy each example into your notes, then watch the videos and see how each is worked out.
Complete the worksheet below. Attempt all the problems before you view the answer key.