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Activities 61
3. Enter the statement of the inequality as Y6. This function evaluates
to 1 if true or 0 if false.
4. Press q
6 to graph the inequality in the standard window.
5. Press r † † to move to
Y6. Then press | and ~ to trace the
inequality, observing the value of
Y.
6. Press o. Turn off Y4, Y5, and Y6. Enter equations to graph only the
inequality.
7. Press r. Notice that the values of Y7 and Y8 are zero where the
inequality is false.