SOLUTION: Find the real solutions, if any, of each system.
{4x^2 + 9y^2= 36}
{y= x+3}
I get stuck after setting everything to zero!
Thankyou
Algebra.Com
Question 30000: Find the real solutions, if any, of each system.
{4x^2 + 9y^2= 36}
{y= x+3}
I get stuck after setting everything to zero!
Thankyou
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
[1]
[2]
Substitute in [1]
use
[3]
[4]
substitute [3] in [2]
[5] (-15/13 , 24/13) is one solution
substitute [4] in [2]
[6] (-3 , 0) is the other solution
check [5] in [1]
Multiply both sides by 13^2
OK
check [6] in [1]
OK
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