Slope intercept form is y=m(x)+b
M is the slope to find it you do the first y value minus the second y value and do the same for x
-6-2. 3+1
You then divide the subtracted y values by the subtracted x values
-8/4
M=-2
To find the b you plug in one set of the coordinates
-6=-2(3)+b
-6=-6+b
b=0
So the equation is
Y=-2x
Total cost - (total cost * 30%) = discounted price
Answer: can you explain it more?
Step-by-step explanation:
I believe the answer is 20 sorry
