Write the slope-intercept form of the line that passes through the point (1,0) and is parallel to x-y=7. type your answer in the box provided or use the upload option to submit your solution

We know that

a) the slope-intercept form of the line---------------> y=mx+b
b) if two lines are parallel both have the same slope
then
passes through the point (1,0) and is parallel to x-y=7

Step 1
Find the slope
x-y=7------------> y=x-7------------> m=1

Step 2
Find the slope-intercept form of the line---> y=mx+b
point (1,0)  m=1
0=(1)*(1)+b------> b=-1
y=(1)*x-1--------> y=x-1

the answer is 
y=x-1

using a graph tool
see the attached figure

Ithink the answer is c