Question

Juan is going to rent a surfboard for the next 12 days. The rental rates shown in the table below include a basic fee for insurance plus a daily rental rate. (to see the table click on this question)

Answer 1

wats that?

Answer 2

that's for amistre.

Answer 3

ok

Answer 4

the independant variabel is the one that doesnt depend on anything else, and that is the # of days in this case

Answer 5

the # of days rolls on by regardless of what else happens in the equation

Answer 6

thats wat i put

Answer 7

and everything else depends on it

Answer 8

so wats 12, 13, and 15?

Answer 9

to decipher the rest, and im sure its a linear function; we need to pick 2 points and devise a line equation from them

Answer 10

wat?

Answer 11

your going to have to be more specific than that

Answer 12

which part did you get lost at?

Answer 13

im just asking wat the answers r to 12, 13, and 15:)

Answer 14

and it seems to be by no set of peculiar coincedences that i am answering 12 13 and 15 lol

Answer 15

HAHA^

Answer 16

tell me, what is the difference in price from day to day, that will help us out. What is the difference between say 50 and 45?

Answer 17

whatever :/

Answer 18

i thought u already answered 12, 13, and 15 so y r u wasting ur time going over them? huh? :/

Answer 19

thats a typo there; the difference between 40 and 55 is what the data gives.

Answer 20

do you want to get snide? or do you want to find the answers?

Answer 21

wat does snide mean?? and yes i want the answers

Answer 22

snide means .... well, its being rude in one way or another. but thats beside the point.

If we can determine the difference in price from day to day we can make an equation that will tell us alot about the rest of the questions

Answer 23

the days change at a regular pace, 1 by 1, so any constant change in price will lead us to a "slope" that we can use

Answer 24

the difference between each one is 15

Answer 25

good, then the rate of change from day to day is 15; lets make an equation to use that information in.

y = 15x seems good, but we need to check it with one of the data points given; id say we use day 1. (1,25)

25 = 15(1) .... needs a constant to adjust for the error. would yousay that we need a +10 on it?


y = 15x + 10

Answer 26

the insurance fee is paid one time, so it relates to the 10, or rather $10

the daily rate is what changes, so it relates to the $15

Answer 27

so is the insurance $10 and the daily is $5 or wat?

Answer 28

$10 insurance, and $15 is daily rate

Answer 29

so did they just pay insurance once?

Answer 30

we can check that by plugging in another day, say day 3

y = 15(3) + 10

y = 45+10 = 55, and lo and behold; the data says that day 3 costs 55 dollars :)

Answer 31

the insurance is a one time deal

Answer 32

as far as 13 goes, the data is the stated domain and range; there is no difference.

Answer 33

will the domain and rangefor the equation representing this data be different that the domain and range of the data itself?

Answer 34

nope, the data is the domain and the range. the equation simply is a model of it

Answer 35

they are like 2 sides of the same coin

Answer 36

if anything, and this is just pulling at straws; the equation has an infinite domain and range in both direction, positive and negtative. Whereas the domain and range of the data itself is strictly positive

Answer 37

if the rental company decided to drop the basic insurance fee,how much would he pay?

Answer 38

just remove the +10 and keep the rest of the equation :)

Answer 39

y = 15x

Answer 40

thanks :)

Answer 41

youre welcome :)