we have
y-intercept is 8 -----> that means (0,8)
x-intercept is -10 ---> that means (-10,0)
step 1
Find out the slope
m=(0-8)/(-10-0)
m=-8/-10
m=8/10
simplify
m=0.8
step 2
Find out the equation in slope-intercept form
y=mx+b
we have
m=0.8
b=8
therefore
y=0.8x+8