Modeling with a Linear Function
Which of the following could be modeled by $y=2x+5$? Answer YES or NO for each one.
 There are initially 5 rabbits on the farm. Each month thereafter the number of rabbits is 2 times the number in the month before. How many rabbits are there after $x$ months?
YES NO

Joaquin earns \$2.00 for each magazine sale. Each time he sells a magazine he also gets a fivedollar tip. How much money will he earn after selling $x$ magazines?
YES NO

Sandy charges \$2.00 an hour for babysitting. Parents are charged \$5.00 if they arrive home later than scheduled. Assuming the parents arrived late, how much money does she earn for $x$ hours?
YES NO

I have a sequence of integers. The first term of the sequence is 7 and the difference between any consecutive terms is always equal to 2.
YES NO

Sneak Preview is a membersonly video rental store. There is a \$2.00 initiation fee and a \$5.00 per video rental fee. How much would John owe on his first visit if he becomes a member and rents $x$ videos?
YES NO

Andy is saving money for a new CD player. He began saving with a \$5.00 gift and will continue to save \$2.00 each week. How much money will he have saved at the end of $x$ weeks?
YES NO