1. Determine whether the relation is a function.

A: ?

2. A commuter has $75. Each day's commute costs $3.50. Write a function to represent the total amount the commuter has remaining after d days. What is the value of the function for an input of 5, and what does it represent?

A: ?

2 answers

r(d) = 75.00 - 3.50d

yes

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