Which is the graph of x - y =1?
answer asap

c

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 )

rearrange x - y = 1 into this form

subtract x from both sides

- y = - x + 1 ( multiply through by - 1 )

y = x - 1 ← in slope- intercept form

with slope m = 1 and c = - 1

since m is > 0 then line slope upwards from left to right.

the only lines sloping in this direction are b and c

now see which of the 2 has a y- intercept of - 1

that is graph c

the graph required is c ( third from the left )