A community for students.
Here's the question you clicked on:
 0 viewing
dnance
 2 years ago
Find the range if y = 3x + 12 for x = {0.4, 0.6, 1.8, 2.2}.
{1.2, 1.8, 5.4, 6.6}
{13.2, 13.8, 17.4, 18.6}
{12.4, 12.6, 13.8, 14.2}
dnance
 2 years ago
Find the range if y = 3x + 12 for x = {0.4, 0.6, 1.8, 2.2}. {1.2, 1.8, 5.4, 6.6} {13.2, 13.8, 17.4, 18.6} {12.4, 12.6, 13.8, 14.2}

This Question is Closed

Loujoelou
 2 years ago
Best ResponseYou've already chosen the best response.1K so for this problem, all you have to do is pluck in those xvalues and solve. We'll do them one by one :) So when we put in x=0.4 we get, y=3(0.4)+12 (Now we do order of operations and multiply 3*0.4 first) y=1.2+12 and now we add this together and get y=13.2 Now we do the same thing with the other 3 and get: y=3(0.6)+12 y=1.8+12 y=13.8 Now 2 more left: y=3(1.8)+12 y=5.4+12 y=17.4 And the last one: y=3(2.2)+12 y=6.6+12 y=18.6 So by doing this we now know that all our yvalues are 13.2,13.8,17.4,18.6 and that's the second answer :)

dnance
 2 years ago
Best ResponseYou've already chosen the best response.0ur teachin me stuff,u ready for round 3?

Loujoelou
 2 years ago
Best ResponseYou've already chosen the best response.1Sure and hey you can just stay here if you want :) I just like helping people learn more about getting medals so it'll be easier for the both of us as well :)

dnance
 2 years ago
Best ResponseYou've already chosen the best response.0idk what this is trying to get me to do?? John began his job making $25 the first day. After that he was paid $6.75 per hour. Write the linear equation for this problem in y=mx+b form.

Loujoelou
 2 years ago
Best ResponseYou've already chosen the best response.1Oh okay, so it wants us to put the information you wrote above in an equation that looks like that. So every hour we will get $6.75 so that number will always be constant. Since we don't know how many hours John works, that'll be a variable, x. So so far we have y=$6.75x. Now it also said he got an automatic $25 on the first day so the equation is y=$6.75x+25 :) Did you get it? :)

dnance
 2 years ago
Best ResponseYou've already chosen the best response.0oh x is how many hours and thats multiplied by how much we get n a hour??

Loujoelou
 2 years ago
Best ResponseYou've already chosen the best response.1Well we can't solve the equation, we can only make one. To solve it, the problem would have had to say how many hours John actually worked.

dnance
 2 years ago
Best ResponseYou've already chosen the best response.0now its aking me to do stuff with the same prob but with a t graph ;( idk this stuff

dnance
 2 years ago
Best ResponseYou've already chosen the best response.0John began his job making $25 the first day. After that he was paid $6.75 per hour.Make a Ttable for the equation for this, using the xvalues: 0, 20, 40. Type in the ordered pairs you get as your answer, in this form: (0, number), (20, number), (40, number).

Loujoelou
 2 years ago
Best ResponseYou've already chosen the best response.1He gets 6.75 an hours, and we don't know how many hours he worked so that's why we do y=6.75x+25. the X in the equation above is the amount of hours John worked. But we can't put a number for x because the problem doesn't tell us how many hours John worked.

Loujoelou
 2 years ago
Best ResponseYou've already chosen the best response.1Oh I get it. You have to make a table. Now though you have to put 0,20, & 40 as the xvalues and solve for your answer.

Loujoelou
 2 years ago
Best ResponseYou've already chosen the best response.1So our equation we have is y=$6.75x+25. We will pluck in 0,20 & 40 one by one to see what we get. y=$6.75(0)+25 y=0+25 y=$25. y=$6.75(20)+25 y=135+25 y=$160 y=$6.75(40)+25 y=270+25 y=$295

Loujoelou
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1347661718902:dw I'm pretty sure that's what it's asking for.
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.