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FUNCTION PROJECT BY: PRATHMICA CHANDRAMOHAN 5TH PERIOD My Real World Question Kristin and her four friends went to the zoo. The ticket costs $15.00, and the parking fee is $3.00. With this being said, how much money would be needed? The Equation The equation is as follows: X= number of friends Y= money needed 15x+3=y Independent and Dependent The independent variable is the x value. The dependent variable is the y value. The money needed to go to the zoo(y) depends on the number friends(x). Is it a Function? This would definitely be a function because the (x) values don’t repeat. Is it Continuous or Discrete? This graph is discrete because it skips the numbers between the whole numbers. Table of Values x $15.00x+3 y (x,y) 1 $15(1)+3 $18 (1,18) 2 $15(2)+3 $33 (2,33) 3 $15(3)+3 $48 (3,48) 4 $15(4)+3 $63 (4,63) 5 $15(5)+3 $78 (5,78) Domain and Range Domain is the x values only Range is the y values only My domain would be{1,2,3,4,5} My range would be{18,33,48,63,78} Graphing the Scenario Y-Values 80 70 60 50 40 Y-Values 30 20 10 0 0 1 2 3 4 5 6 The Answers The conclusion is that the cost per ticket is $15.00, so multiply by five because there are four friends along with Kristin. And you don’t want to forget the parking fee, so with the total($75.00), add $3.00. Therefore the grand total would be $78.00.