Asked by Unknown
Decide whether y is a function of x.
1. 5x-y=10
2.x^2+y^2=4
1. 5x-y=10
2.x^2+y^2=4
Answers
Answered by
Bosnian
1.
5 x - y = 10
5 x - 10 = y
y = 5 x - 10
2.
x ^ 2 + y ^ 2 = 4
y ^ 2 = 4 - x ^ 2
y = + OR - sqrt ( 4 - x ^ 2 )
5 x - y = 10
5 x - 10 = y
y = 5 x - 10
2.
x ^ 2 + y ^ 2 = 4
y ^ 2 = 4 - x ^ 2
y = + OR - sqrt ( 4 - x ^ 2 )
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