Answer:
y = x - 8
Step-by-step explanation:
To write the equation of a line in slope intercept form
Step1 : find the slope
The slope has been given
Slope m = 1
Step 2: using a point slope form
y - y_1 = m ( x - x_1)
Substitute m
y - y_1 = 1 ( x - x_1)
Step 3: substitute the point
( 9 , 1)
x_1 = 9
y_1 = 1
y - 1 = 1( x - 9)
Step 4: using a slope intercept form
y = mx + c
Open the bracket
y - 1 = 1( x - 9)
y - 1 = x - 9
y = x - 9 + 1
y = x - 8
The equation of the line in slope intercept form is
y = x - 8