How do you graph #x-y=1# by plotting points?
1 Answer
Jan 30, 2016
Look below!
Explanation:
Given equation is
As I've always stated, we can solve it in a simple 2-step manner, and this manner is the same for all linear equations.
- Step 1. Take
#x=0# and solve for#y# . We will get#0-y=1\impliesy=-1# So the first point of our consideration is#(0,-1)# . - Step 2. Next we take
#y=0# and solve for#x# . We get#x-0=1\impliesx=1# . So the next point in our consideration is#(1,0)#
So finding these 2 points and joining them through a line, we then extend the line on either sides to whatever length we see fit. So the graph will look a lot like this.
graph{x-y=1 [-2.5, 2.5, -1.25, 1.25]}