Determine whether each ordered pair is a solution of the given equation.
2x+7y=-4; (2,-5)

Question

Determine whether each ordered pair is a solution of the given equation.
2x+7y=-4; (2,-5)

chihiroasleaf · Answer

what is the solution of an equation mean? :)

anonymous · Answer

@chihiroasleaf a solution is (2,4)

chihiroasleaf · Answer

well.., a solution of an equation $ ax+by = c$ is an ordered pair $x,y$ that satisfy the equation...

so.., to check whether an ordered pair (x,y) is an solution of an equation, you should substitute the value of x and y into the equation...

anonymous · Answer

@chihiroasleaf did that already, what's next ?

chihiroasleaf · Answer

that's all..., 

you have an equation $2x+7y = -4 $
you have an ordered pair $ (2,-5) $ 
change the value of x and y ... and see whether the left side equal to right side..
if it's equal.., then it's the solution...

can you continue it? :)