SOLUTION: I need help with graphing an equation x-2y=6 x+4y=5 I did try but I am having problems.I have 16 problems I will try the other ones on my own,

Algebra ->  Graphs -> SOLUTION: I need help with graphing an equation x-2y=6 x+4y=5 I did try but I am having problems.I have 16 problems I will try the other ones on my own,       Log On


   

Question 99113: I need help with graphing an equation
x-2y=6
x+4y=5
I did try but I am having problems.I have 16 problems I will try the other ones on my own,
Answer by rcmcc(152) About Me  (Show Source):
You can put this solution on YOUR website!
to graph this question you first must isolate y from each side
x-2y=6
bring the x to the other side
-2y=6-x
divide by -2
y=%28x%2F2%29-3
Repeat the same for the next line

x%2B4y=5
Bring x to the other side
4y=5-x
divide by 4
y=%285%2F4%29-%28x%2F4%29
by substituting in your x value into your isolated equations you can find the y coordinate.
ex.
for the equation y=%28x%2F2%29-3
you are given a random x value of 4
place 4 in for x and you get the y value
y=%284%2F2%29-3
y=-1
now plot (4,-1) on your graph, and repeat for other points until you can draw your graph.