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Point P please help i appreciate whoever does (:

Point P please help i appreciate whoever does (:-example-1

1 Answer

3 votes

Answer:

y = (√7)/4

Explanation:

The equation of the unit circle is ...

x^2 +y^2 = 1

Putting the given value in for x, we can find y to be ...

(-3/4)^2 +y^2 = 1

y^2 = 1 -(-3/4)^2 = 1 -9/16 = 7/16 . . . . . subtract 9/16

y = √(7/16) . . . . . . . . . . . take the square root; y > 0 here

y = (√7)/4

User Mark Whitfield
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