Question

write a function rule to describe each statement.

14. the cost in dollars of printing dollar bills when it costs 3.8cents to print a dollar.

15.the amount of money your earn mowing lawn at $15 per lawn.

16.the profit you make selling flowers at $1.50 each when each flower costs you $.80

Answer 1

@jim_thompson5910

Answer 2

if it costs 3.8 cents or 0.038 dollars to print a dollar, then how much will it cost to print x dollars?

Answer 3

i dont know what im suppose to do

Answer 4

1 dollar costs 0.038 dollars to print

2 dollars cost 2*0.038 = 0.076 dollars to print

3 dollars cost 3*0.038 = 0.114 dollars to print

etc etc

Answer 5

so x dollars cost _____ dollars to print

Answer 6

so 15. X lawn time 15 is the amount money being made

Answer 7

yep x times 15 or 15 times x

short way to write it: 15x

so the function is f(x) = 15x

Answer 8

okay s for 16. f(x)=1.50-.80 ???

Answer 9

for 14 how do we put it in to f(x)= ??

Answer 10

14 is f(x) = 0.038x

notice if you plug in x = 1, you get f(x) = 0.038

if you plug in x = 2, you get f(x) = 0.076

etc etc

Answer 11

did i get number 16 right

Answer 12

1.5 - 0.8 = ??

Answer 13

.70

Answer 14

so it's f(x) = 0.7x