Please let me know if you need any clarification. I'm always happy to answer your questions.
a) let number of months be x.
x=500/75; 75x=500; 0=500-75x in standard form the equation will be of the form f(x)=mx+c
equation is f(x)=500-75x
b) variable x is the number of months Barry has paid his dad while f(x) is the balance Barry owe his dad at a particular month x.
c) x 1 2 3
f(x) 425 350 275
d) y-intersept is 500 and x-intersept is 0=500-75x; x-intersept= 6.66667
y-intersept means that before any payments Barry made, he owe his dad $500, x-intersept indicates that Barry cleared his debt after 6.66667 months
after 4 months Barry owe his father 500-75(4)=500-300= $200Please let me know if you need any clarification. I'm always happy to answer your questions.
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