SOLUTION: The linear equation: x2 + y2 = 100 If x = 6, value/s of y: Select one: 1. None of the above 2. +8 3. -8 4. +8 or -8=

Algebra ->  Linear-equations -> SOLUTION: The linear equation: x2 + y2 = 100 If x = 6, value/s of y: Select one: 1. None of the above 2. +8 3. -8 4. +8 or -8=       Log On


   

Question 637010: The linear equation: x2 + y2 = 100
If x = 6, value/s of y:
Select one:
1. None of the above
2. +8
3. -8
4. +8 or -8=



Found 2 solutions by ewatrrr, VirtualMathTutor:
Answer by ewatrrr(24785) About Me  (Show Source):
Answer by VirtualMathTutor(26) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2+%2B+y%5E2= 100
If x = 6
then 6%5E2+%2B+y%5E2= 100
Simplify
36 + y%5E2 = 100
Then subtract 36 from both sides of the equation to get:
36 + y%5E2 - 36 = 100 - 36
Simplify
y%5E2 = 64
find the square root of both sides:
y = +/-8
The solution is Option #4: +8 or -8