Answer:
y = -x + 8
Explanation:
We are to write the expression is slope intercept format;
coordinate = (3,5)
slope = -1
The equation of a straight line is given as;
y = mx + c
y and x are the coordinates
m is the slope
c is the y-intercept
y = mx + c
5 = -1 (3) + c
5 = -3 + c
c = 8
The equation of the line is ;
y = -x + 8