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Home > A2C > Chapter 8 > Lesson 8.1.5 > Problem 8-85

8-85.

Does each x-value on the graph of the function have only one corresponding y-value?

Domain: −10 ≤ x ≤ 10
Range: −10 ≤ y ≤ 10

See the unit circle graph at right.
What portion of the circle is shaded?