Question

Part A: Maria rented a coat at $285 for 3 days. If she rents the same coat for 6 days, she has to pay a total rent of $510.

Write an equation in the standard form to represent the total rent (y) that Maria has to pay for renting the coat for x days. (4 points)

Part B: Write the equation obtained in Part A using function notation.(2 points)

Part C: Describe the steps to graph the equation obtained above on the coordinate axes. Mention the labels on the axes and the intervals. (4 points)

Answer 1

If she rents for 3 days I find that she pays $95 per day, however if she rents for 6 days I find that she pays $85 per day

Answer 2

so i'm stuck now

Answer 3

@hartnn

Answer 4

Your x,y values for part A is?

Answer 5

3,285
6,510
So f(b) - f(a) / b - a

Answer 6

Plug in, i gotta get off :p

Answer 7

f(6)-f(3)/6-3

Answer 8

510-285/6-3
225/3
75

Answer 9

Yes. lol I might make typo's.. On my phone

Answer 10

so that's my equation for A?

Answer 11

Y= 75x + ?
What do you think b is?

Answer 12

y=75x+b
510=75*6+b
510=450+b
60=b

Answer 13

y=75x+60

Answer 14

B is f(x)=75x+60

Answer 15

i have no idea how to do C

Answer 16

K so why'd you put 60 as b?

Answer 17

Ohh you put 6 as # of days she rented, right?

Answer 18

:/ What?

Answer 19

I don't get how you got 60 as b, could you explain

Answer 20

I calculated the y intercept

Answer 21

y=75x+b
replace y with a y value from the chart=75*(replace x with the corresponding x value)+b
510=75*6+b
510=450+b
60=b

Answer 22

Okay, for C.
Part C: I would graph the days on the x axis starting at 0 through 10 with intervals of 1. Then graph the cost on the y axis starting at 0 through 510 with intervals of ?
What do you think "?" is

Answer 23

what "?"

Answer 24

What intervals would you use? "Purpose is to guide learners " -OS .. Sorry if this seems annoying :/

Answer 25

Um I'd put days on the x axis because time is an independent variable and i'd put the integers from 0-10 because it's only logical that you have integers when counting days

Answer 26

for the y axis I'd go up in integers of 25 or 50

Answer 27

intervals*

Answer 28

Yeah I explained the x-axis, I mean what intervals would u use for the y... Would you agree with 75? xD

Answer 29

@Lena772 get it?

Answer 30

yes i'd agree with 75

Answer 31

So does that answer your question?

Answer 32

yes thanks

Answer 33

Check your messages >.>

Answer 34

I did <.<