Which situations are modeled by exponential functions?

Choose all answers that are correct.
The rain fell at a steady rate of 0.15 in./h.
The graphic designer made each picture one-fourth the size of the previous picture.
The cook added one-half teaspoon of salt to a recipe every time he made it until it was just right.
The number of visitors increased by 200% each hour.

Question

Which situations are modeled by exponential functions?

Choose all answers that are correct. 
        The rain fell at a steady rate of 0.15 in./h. 
        The graphic designer made each picture one-fourth the size of the previous picture. 
        The cook added one-half teaspoon of salt to a recipe every time he made it until it was just right. 
        The number of visitors increased by 200% each hour.

adamaero · Answer

Draw what you think an exponential function looks like.

anonymous · Answer

a circle?

anonymous · Answer

pick the one that increases not at a fixed rate, but by a fixed percent

anonymous · Answer

i guess you are supposed to include this one 

 The graphic designer made each picture one-fourth the size of the previous picture. 

too but in real life, he could do this at most 3 times, then it would be too small to see