The answer is y = -1/5x + 5
Perpendicular means the opposite reciprocal of the slope. The reciprocal of 5 would be 1/5. The opposite sign would be negative, so -1/5.
The equation that you use is y - y1 = m(x - x1)
The point is (-15,8).
x1 = -15
y1= 8
m= -1/5
y - 8 = -1/5(x - (-15)).
The 15 becomes positive.
y - 8 = -1/5(x+15)
Distribute
y - 8 = -1/5x - 3
Add 8 to both sides
y = -1/5x + 5
I am sorry but it appears you have forgotten some of the answer! I can not give you a direct answer but I can give some tips!
When you are given an equation with variables and you know the value of each variable, you want to fill them in.
For example : 
Now lets say x = 3. We need to fill in the variables
Finally you would solve like any other equation.
Hope this helps and sorry I could not give a direct answer!
The problem is literally telling you the answer. The perimeter would be 324. It is just giving you extra information in the problem that is probably making you confused.
Answer:
See description
Step-by-step explanation:
Percent mark up and discount finds the amount price changes to. Percent of change compares two prices to find a percentage of decrease or increase. Percent of change can be negative or positive while generally mark up and discount are only positive. Both find the percentage of change between two prices or costs. But discount and markup give a price while percent change gives a percentage change between prices.
Answer:
(4,-10)
Step-by-step explanation:
You set them equal to each other.
You get x=4
Sub in 4 for one of the equations
y=-10
