How do you graph # y = x - 4# by plotting points?

1 Answer
Apr 22, 2017

Answer:

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.

Explanation:

For example:

When #x=-2# , #y=(-2)-4=-6# .
When #x=0# , #y=(0)-4=-4# .
When #x=3# , #y=(3)-4=-1# .
When #x=4# , #y=(4)-4=0# .
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 #y=x-4#.