Baka B.

asked • 11/02/19

The point P is on the unit circle. Find P(x, y) from the given information. The y-coordinate of P is 3/4 , and the x-coordinate is negative.

The point P is on the unit circle. Find P(x, y) from the given information. The y-coordinate of P is 3/4 , and the x-coordinate is negative.



1 Expert Answer

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Edward C. answered • 11/02/19

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The unit circle is a circle of radius 1 centered at the origin. Write down the equation of this circle, plug in 3/4 for y, and use the given information to solve for x.


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Baka B.

I know -3/4 is the y but I don't know how to find the x.
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11/03/19

Edward C.

tutor
Have you learned algebra?
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11/03/19

Baka B.

is the answer -sqrt 7/4 because my teacher says it's wrong.
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11/03/19

Edward C.

tutor
How did you get -sqrt 7/4?
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11/03/19

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