Question

Solve each system by graphing;
2x-y=-2
x-3y=9
Thanks:)

Answer 1

y=2(x+1)

Answer 2

y=x-9/3

Answer 3

how did you get those?:o

Answer 4

im confused on the steps /:

Answer 5

2x-y=-2
x-3y=9

First one:
2x-y=-2
subtract 2x both sides:
-y=-2-2x
multiply both sides by -1 :
y=2+2x
y=2x+2
y intercept : (0,2)
x intercept: set y = 0
0=2x+2
2x=-2
x=-1
(-1,0)

Second one:
x-3y=9
subtract x both sides:
-3y=9-x
divide both sides by -3
y=(9/(-3))-(-1/3)x
y=(-3)+(1/3)x
y=(1/3)x -3
y intercept : (0,-3)
x intercept: set y = 0
0=(1/3)x -3
(1/3)x = 3
x=9
(3,0)

Answer 6

oops. the last line I had typed should say (9,0)