Question

...

Answer 1

Draw the graph of both equations on the same axis, then find the point of intersection.

Answer 2

A

Answer 3

3y − x = 4(green),y + 2x = −1(blue)

Answer 4

rearrange the equations so you get them as y= ...
So for the first equation you get y=-2x-1

Answer 5

Try the second one. Then you put any value for x to get the value of y, and then plot the points.

Answer 6

If you're wondering how I got the first equation as y= -2x-1 .. you do:
Minus 2x from both sides to get:
y+2x-2x = -1 -2x
As 2x-2x=0
Then you get y+0=-1-2x,
which is the same as y=-2x-1

Answer 7

Find quite a few points for each equation.
So for example, for the first one:
y=-2x-1
Let x=0, then you get y=-1, so plot (0,-1) on the graph
Let x=-1, then you get y=1, so plot (-1,1) on the graph .. then join the points together, and extend the line of the graph since it's a straight line.
Do the same for the second equation, and extend the lines until they both meet. Then you should be able to see the point of intersection.