Question

if x^2+ y^2 =64 and xy = 18 what is x+y

Answer 1

Answer:

Finding the y value is easy if you know the slope of the line and the x coordinate. Review the equation for the slope of a line. The equation for finding the slope is: m = [y1 - y2] / [x1 - x2]. If you know x, you can solve for y to find the y value for the slope of the line.

X²+y²=64

(x+y)²=64

x+y=√64

x+y=8

Answer 2

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