A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Aisha just received a $40 paycheck from her new job. She spends some of it buying music online and saves the rest in a bank account. Her savings is given by f(x) = 40 1.25x, where x is the number of songs she downloads at $1.25 per song.
a. Graph the function.
anonymous
 one year ago
Aisha just received a $40 paycheck from her new job. She spends some of it buying music online and saves the rest in a bank account. Her savings is given by f(x) = 40 1.25x, where x is the number of songs she downloads at $1.25 per song. a. Graph the function.

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0edit: f(x) = 40  1.25x

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1put it in y = mx+b form f(x) also means y we just need rearranging for the formula

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1yup... now we just graph that... hmm..... not by hand .... with desmos online grapher

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i have to take a pic of it to send it through online, so i gotta do it by hand lol

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1if we chose x = 0 then y = 40 and that is crazy to graph manually

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1oh wow XD good luck XD

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0lol, can u tell me what goes on the x value line and the y value so i can graph?

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1I think it's torture .... when x = 0 y = 40 so by graph paper you will have to combine sheets

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1well we can just let x = 0,1,2,3... and then solve for y same process when x = 1,2,3 and then solve for y

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i mean, when i graph this manually, the y values will be 0 to 40 and the x values will be..1 2 3 etc?

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1we can choose our x ... that's why x can be 0,1,2,3. we plug those values into the equation so we can solve for y when x = 0 y = 1.25(0) +40 y=0+40 = 40 so (0,40) is a point on the graph

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1when x = 1 y=1.25(1) +40 = 1.25+ 40 = 41.25 so (1,41.25)

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1that's torture to draw manually

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0hmm yea >.< lol i'll see what i can do, thanks!

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1ugh .. I forgot the negative ok that didn't make an impact when x = 0 but it does when x = 1 so y=1.25+40 = 38.75 (1, 38.75) that makes better sense.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1damn I was half drowsy when I was doing the x = 1 xD

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1438128399818:dw this is what im kinda confused about

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i plot 40 on the y axis, and i gotta go down 1.25 cuz thats the slope, but what numbers do i put on the x axis

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1if your graphing by 5's... it should be uniformed.. dw:1438128530205:dw

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1wow.. maybe.. let x = 5, 10, 15 into the equation and see what the yaxis becomes.. but I know it's not going to be in 5's

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1like when x = 5 y = 1.25(5) +40

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but even though x represents the number of songs this girl downloads, it should still be like u just drew it? i thought the y axis = the dependent variable, being the money, and the x axis is the independent, being the amount of songs downloaded.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1x is the number of songs.. so when x = 5.. that's 5 songs the more songs bought the less money is left over so if x = 5 (5 SONGS) y= 1.25(5) +40 5 songs at $1.25 a piece is (1.25 x 5 = 6.25 or $6.25) so $6.25 is being deduced from 40 dollars y=6.25+40 y=33.75 or $33.75 dollars remaining.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1so to find out how many songs can be buy until she goes bankrupt we have to find the xintercept and that's setting y = 0 0 = 1.25x+40 and solve for x 40 = 1.25x dividing 1.25 on both sides gives us 32. So, she can buy up to 32 songs before going broke

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1so x is the songs y is da money at 0 songs she has her full 40 dollars (0,40) when x = 0 (finding the yintercept) at 32 songs she's broke (32,0) when y = 0 (finding the xintercept)

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1I just realized something. you just have to plot the points (0,40) and (32,0). then you can connect the dots.. no manual let x = 1,2,3... what the question was really looking for are the intercepts x*(

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yea, i just did it that way ^^
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.