Question

please help i will fan and give a medal :]

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

Part b: write the equation obtained in part A using function notation

part c: Describe the steps to graph the equation obtained above on the coordinate axes mention the lables on the axes and the intervals

Answer 1

I should be able to help.

Answer 2

okay

Answer 3

What math level are you in?

Answer 4

algebra 1

Answer 5

Sweet. Alright, I can help. :)

Answer 6

okay thank you!

Answer 7

No need to thank me, I love math! :D

Answer 8

Let's just go step by step, we won't rush or jump to conclusions. So, part 1.

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

Answer 9

:D i do to though it depends on what type XD i am so bad at algebra

Answer 10

\[ax+bx=c\] This is standard form.

Answer 11

okay

Answer 12

@snowblaze I worked really hard in Middle school to become good at math. Takes patience :)

Answer 13

:D

Answer 14

so c is the cost

Answer 15

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
Okay so to get 285 for 3 days. That's 95 a day. For 510 is uhm I believe 85 a day if I did that mental math right. So I mean this gives us an idea of what the daily cost is, just to get numbers going.

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

Answer 16

86

Answer 17

Or, do you want to graph it.

Answer 18

im personally better at equations

Answer 19

Okay

Answer 20

3x+b=285

Answer 21

6x+b=510

Answer 22

so 510/6?

Answer 23

x=75

Answer 24

okay

Answer 25

I think. Lemme double check that, too much mental math gets you in trouble.

Answer 26

actually i think its 85

Answer 27

Well the slope is 75 between the two equations, now we have to move on to the next step.

Answer 28

oh right sorry

Answer 29

\[y-y1=m(x-x1)\]

Answer 30

Please do not apologize :)

Answer 31

m=75

Answer 32

:P okay

Answer 33

We can pick the points of (3, $285) to plug in x1=3 y1=285

Answer 34

soo\[y-285=75(x-3)\]

Answer 35

okay

Answer 36

So they want it in y= I believe they said price for 'x' days. So we can solve so it is in y= form

Answer 37

y=75x+60

Answer 38

Part a is done :
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
y=75x+60

Answer 39

okay

Answer 40

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
Onto this.

Answer 41

Oops forgot the question in that. :P

Answer 42

:P

Answer 43

It says to write in functional notation. that is simply saying 'f(x)'. Ever seen that before?

Answer 44

yes

Answer 45

So replace 'y' with f(x)
f(x)=75x+60

Answer 46

ooooooh

Answer 47

Quite simple. :P haha

Answer 48

So now it's just c.

Answer 49

okay

Answer 50

part c: Describe the steps to graph the equation obtained above on the coordinate axes mention the lables on the axes and the intervals

Sweeeet. sounds fun. Do they really want you finding intervals of graphs?

Answer 51

yurp

Answer 52

Well, I went ahead and graphed the function for you to visually see it.

Answer 53

I really do not see an interval..

Answer 54

me neither

Answer 55

Where I marked 'x' is considered intervals. This is a straight line.