A charity organization had a fundraiser where each ticket was sold for a fixed price. After selling 200 tickets, they had a net
profit of $12,000. They had to sell a few tickets just to cover
necessary production costs of $1,200.
Let y represent the net profit (in dollars) when they have sold
tickets.
Which of the following could be the graph of the relationship?

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

5

step-by-step explanation: