Well, the graph of y = -2 would look like: y ^ | | | | <----------------------------------------> x | <----------------------------> y=-2 | | So, you can see that the line where y = -2...
Solve this simultaneous equation by elimination:x+y = -4x-y = 2Add both equations together:2x = -2Divide both sides by 2 to find the value of x:x = -1Substitute the value of x into the original...
Firstly, equate x to zero. This makes y = -2 when x = 0, so th co-ordinates of the y-intercept are (0,-2).
Next, for every increase/decrease in x of 1, increase/decrease y by 3. So the co-ordinates...