How to graph x - y = 1 ?

Graph:
${\displaystyle x-y=1}$
X-intercept: value of ${\displaystyle x}$ when ${\displaystyle y=0}$
Substitute ${\displaystyle 0}$ for ${\displaystyle y}$ and solve for ${\displaystyle x}$.
$x-0=1$
${\displaystyle x=1}$
The x-intercept is ${\displaystyle (1,0)}$. Plot this point.
Y-intercept: value of ${\displaystyle y}$ when ${\displaystyle x=0}$
Substitute ${\displaystyle 0}$ for ${\displaystyle x}$ and solve for ${\displaystyle y}$.
${\displaystyle 0-y=1}$
${\displaystyle -y=1}$
Multiply both sides by ${\displaystyle -1}$. The signs will change as a result.
${\displaystyle -1(-y)=1\times -1}$
${\displaystyle y=-1}$
The y-intercept is ${\displaystyle (0,-1)}$. Plot this point.
Put a line through each of the points.
graph{x-y=1 [-10, 10, -5, 5]}