SOLUTION: What is the ordered pair that is the solution to the system of equations:
y = -2/3x
x + 4y = 15
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Question 14183: What is the ordered pair that is the solution to the system of equations:
y = -2/3x
x + 4y = 15
Answer by Alwayscheerful(414) (Show Source): You can put this solution on YOUR website!
you have 2 choices to solve this equation. 1. substitution 2. graphing
SUBSTITUTION
Plug in Y in the second equation
isolate the X value
solve for x by multiplying both sides by -3/5 (the reciprocol)
Now plug X back in the original equation.
your ordered pair would be (-9, 6)
GRAPHING
convert both equations into y=mx+b form
you already have one:
You can convert by making the "y" stand by itself
divide both sides by 4
Then graph them.
Then you can either tell the intersection point on a graph of the two lines, or you can substitute.
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