An amusement park charges a $15 entrance free plus $3.25 for each ride. Part A: Write an equation that represents the situation.
Write your answer in the box. Part B: Identify the initial value and the rate of change for the function that represents the situation. Part C: How much would it cost to enter the amusement park and ride on seven rides? Show your work.
Part A: Equation would be in the y=mx+b format. m, or the slope, would be the cost that varies depending on the number of things that happen so m=3.25. b would be the fix cost so it is 15 so the equation ends up being y=$3.25x + $15.
Part B: Initial value is 15 since it is the fix cost, and 3.25 is the rate of change since it added as the number of rides increase.
Part 3: To solve this you substitute 7 into x so y=$3.25(7) + $15 = $37.75
The way to get this is that you put them in fraction form 7/15 and then you make it equal to to x/100 and then divide the known part of the fraction which in this case is 100/15 which gives 6.67 (rounded). After you get that you multiply it by 7 which give you 46.69%
