Answer:
y = x - 12
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = 1 , then
y = x + c ← is the partial equation
To find c substitute (13, 1) into the partial equation
1 = 13 + c ⇒ c = 1 - 13 = - 12
y = x - 12 ← equation of line
