| KU Interactive Mathematics |
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Example: Graph f (x) = 2x + 5 and its inverse f –1(x) in the same xy-plane.
| What to Enter | Screen Shots |
| Press GRAPH and enter 2X + 5 in \Y1=. Note that X is entered with X,T,θ,n. |
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| Scroll to the next line \Y2= and enter X. |  |
| Press GRAPH and you will see these graphs: |  |
| Press 2ND and DRAW (above PRGM). |  |
| Scroll UP until 8:DrawInv is selected. |  |
| Press ENTER. |  |
| Press VARS (variables). |  |
| Scroll right to select Y-VARS. |  |
| Press 1 to select Function…. In the next window, 1:Y1 is already selected. |  |
| Press 1 to select Y1. Then, Y1 is automatically pasted after DrawInv. (You are selecting which Y to graph the inverse of.) |  |
| Press ENTER and the graph of the inverse of Y1 = 2X+5 is drawn. Notice that the graphs of the original function Y1 and its inverse are symmetrical with respect to the diagonal line Y2 = X . |
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| Course Info | Office Hours | Exams | LiveMath | TI | Help | |
KU | Math Dept | Home |
| KU Interactive Mathematics |
Disclaimer • Updated September 4, 2008
Email: mitsuma@kutztown.edu
Phone: +1 (610) 462-WPJW
Phone: +1 (610) 462-WPJW