Question

graph the linear equation. find three points that solve the equation, then plot them on the graph. x-y=1
i have no idea how to do this. can somebody explain how to do it. please ans thank you

Answer 1

x-y=1
Rearrange to become,
y= x- 1

Find three points that solve the equation, means just substitute any 3 value of x and solve it, u can use 1,2,3 or any numbers that you choose.

For x=1,
y=0

For x=2,
y= 1

For x=3
y=2

The 3 pts are (1,0) , (2,1) and (3,2)

Using the 3 pts above, plot the line. and you are done.

To check you answer, click the link, to see if your graph is correct
http://www.wolframalpha.com/input/?i=y%3D+x-+1

Answer 2

thank you this will help with the rest of my test

Answer 3

NP.