Question

Which situations are modeled by linear functions?
Choose all answers that are correct.

The cost of a bottle of milk increased by 4% each month.

The amount of water in a jug decreases by 4.5 oz every 30 min.

The birds flew at a steady speed of 20 mph.

Jan’s age is twice Frank’s age, Frank’s age is twice Rico’s age, and Rico’s age is twice Madison’s age.

Ebony’s quiz scores increased 5 points every week until she reached the maximum quiz score of 60.

@ganeshie8 I'm sure it's not A.

Answer 1

right! A is exponential

Answer 2

what about B ?

Answer 3

Exponential? @ganeshie8

Answer 4

@ganeshie8

Answer 5

you're adding a fixed amount every 30 minutes :

\[0, ~4.5, ~ 9,~ 13.5,\ldots\]

Answer 6

you can represent it as \(y = 4.5x\)
which is linear right ?

Answer 7

looks i got it in reverse but i hope you get the idea
it is linear because you're taking away a FIXED amount every 30 minutes