How do you graph # y = x - 4# by plotting points?
Make a list of x values and their corresponding y values. Plot the (x,y) coordinates on the y against x axes. Join the dots and the straight-line graph is obtained.
And so on...
By plotting the coordinates of (-2,-6), (0,-4), (3,-1), (4,0), etc. , the points obtained will form a straight line with an equation