How do you graph #y= x + 3#?

1 Answer
Feb 18, 2016

Draw three points satisfying the equation and join them to form a straight line.

Explanation:

To draw the graph of the equation #y=x+3#, one needs to find at least three sets of #(x, y)# (as this is a linear equation and hence represents a straight line) which satisfy this equation. (Although two should be alright, three are preferable as any set of wrong numbers will show up.)

Let us take wide spread values of #x#m say #-8#, #0# and #8#. Putting these in the equation #y=x+3#, we get #y# as #-5#, #3# and #11# respectively.

Hence, three sets of #(x, y)# are #(-8, -5)#, #(0, 3)# and #(8, 11)#. Now draw these points and join them to form a straight line.