Question

What is this graph ?

Answer 1

A graph is a graph

Explanation:

Answer 2

The slope-intercept form:

`y=mx+b`

m - slope

b - y-intercept

`x-y=1` subtract x from both sides

`-y=-x+1` change the signs

`y=x-1`

It's a linear function.

We need only two points to plotting a graph.

We choose any three values of x and calculate y.

`for\ x=0\to y=0-1=-1\to(0,\ -1)\\for\ x=1\to y=1-1=0\to(1,\ 0)\\for\ x=2\to y=2-1=1\to(2,\ 1)`