Betty and some of her friends want to rent the neighborhood pool for a party. They are planning to split the total cost between
everyone that comes. To minimize the amount that each person has to pay they want to make sure that at least 10 friends come to the party. Also, the neighborhood pool has a maximum capacity of 30 people so they can not exceed this number. Which graph represents the number of people that can come to the party?
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We can observe that the function describing the graph is linear and so the equation is of linear nature:
Numbers m and n have special names. m is called the slope, n is called y-intercept.
From the graph one can tell that the line intercepts y-axis at y = -1 that means n = -1. What about the slope you say?
The slope can be calculated using two points' coordinates that lie on the line:
Now our line has an equation,
Hope this helps.
Answer:
Step-by-step explanation:
