From linear equation of a line,
y=mx+c or y=mx+b
Slope of a line is m and y-intercept is c (or b).
So first we have to make y the subject in
→8x+y=9
→y= - 8x+9
y = mx + c
Hence slope is (-8) and y-intercept is 9.
for x-intercept, put y=0 and we get
0 = -8x+9
x=-8/-9
x= 8/9
therefore x intercept is 8/9.