ojedaethan19 ojedaethan19

31-01-2017
Mathematics

Answered

X^2 + y^2 = 8

X-y=0

Select all of the following that are solutions to the system shown

Verified Answer :

Anonymous Anonymous

31-01-2017

X^2 + y^2 = 8
X-y=0 so x = y

replace x = y into X^2 + y^2 = 8

y^2 + y^2 = 8

2y^2 = 8

y^2 = 8/2

y^2 = 4

y = - 2 and y = 2

because x = y

so x = - 2 and x = 2

solutions:

x= - 2 and x = + 2

y= - 2 and y = + 2

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