linear equation using POINT-PLOTTING, INTERCEPTS & SLOPE-INTERCEPT METHOD
GIVEN: 2x-y=4

Question

linear equation using POINT-PLOTTING, INTERCEPTS & SLOPE-INTERCEPT METHOD
GIVEN: 2x-y=4

unklerhaukus · Answer

can you re-arrange that equation so it is 

y= ...

anonymous · Answer

im sorry but that's the only given.. 2x-y=4

unklerhaukus · Answer

you could add y to both sides
 then take 4 away from both sides

unklerhaukus · Answer

what do you get ...

anonymous · Answer

y=-2x+4 is that right?

unklerhaukus · Answer

almost, check you signs -/+

anonymous · Answer

yah! that my answerr y=-2x+4 is that right?

unklerhaukus · Answer

2x-y=4
adding y to both sides
2x-y+y=4+y
2x        = 4+y
taking 4 away from both sides
2x -4       = 4-4+y
                =

anonymous · Answer

why adding both sides?? all i know is to subtract it? is that right?

unklerhaukus · Answer

the other way is
2x      -y = 4
taking away 2x form both sides
2x-2x-y = 4 -2x
          -y = 4 -2x
now multiply both sides by minus one