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anonymous
 one year ago
A shop at the mall sells gadgets. The scatter plot shows the total number of customers and the remaining gadgets throughout the day.
(a) What is the association between the remaining gadgets and the total number of customers?
(b) Use the two data points closest to the line, (20,24) and (36,4), to write an equation for the line. Write the equation in slopeintercept form.
(c) According to the equation, for each additional customer, what happens to the total remaining gadgets?
(d) According to the equation, predict the remaining gadgets when there are 32 total customers.
anonymous
 one year ago
A shop at the mall sells gadgets. The scatter plot shows the total number of customers and the remaining gadgets throughout the day. (a) What is the association between the remaining gadgets and the total number of customers? (b) Use the two data points closest to the line, (20,24) and (36,4), to write an equation for the line. Write the equation in slopeintercept form. (c) According to the equation, for each additional customer, what happens to the total remaining gadgets? (d) According to the equation, predict the remaining gadgets when there are 32 total customers.

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dan815
 one year ago
Best ResponseYou've already chosen the best response.0do you have answers for any of them yet

dan815
 one year ago
Best ResponseYou've already chosen the best response.0okay can you see these points look like they are part of a line

dan815
 one year ago
Best ResponseYou've already chosen the best response.0as you get more customer you have less and less hadgets

dan815
 one year ago
Best ResponseYou've already chosen the best response.0it means remaining gadgets is directly proportional to the number of customers

dan815
 one year ago
Best ResponseYou've already chosen the best response.0use those 2 points to find the slope

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0should start another one so you can get more medals?

dan815
 one year ago
Best ResponseYou've already chosen the best response.0slope is given by change in height per change in horizontal distance

dan815
 one year ago
Best ResponseYou've already chosen the best response.0change in height is change in y coordinates change in horizontal distance is change in x coordinates

dan815
 one year ago
Best ResponseYou've already chosen the best response.0slope tells you height change for every horizontal distance change

dan815
 one year ago
Best ResponseYou've already chosen the best response.0(20,24) and (36,4) can you do the work from here?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i don't think so haha :(

dan815
 one year ago
Best ResponseYou've already chosen the best response.0you have 2 points, given in (x,y) form

dan815
 one year ago
Best ResponseYou've already chosen the best response.0wht are the y coodinates of eahc point

dan815
 one year ago
Best ResponseYou've already chosen the best response.0okay so what is the change in y?

dan815
 one year ago
Best ResponseYou've already chosen the best response.0okay well 20 we went lower so

dan815
 one year ago
Best ResponseYou've already chosen the best response.0what about the change in x coordiantes now

dan815
 one year ago
Best ResponseYou've already chosen the best response.0well this time we went up so 16

dan815
 one year ago
Best ResponseYou've already chosen the best response.020 for y and 16 for x changes

dan815
 one year ago
Best ResponseYou've already chosen the best response.0how much y are we changing for every x?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Are you trying to solve for b) right now?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I am just going to walk you through it step by step.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0First, we need to find the slope of the line.dw:1436826415876:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1436826505071:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Your m value is 5/4

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Next, we need to find the b value, or your xintersect. (the place where the line crosses the xaxis)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1436826647783:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Next, distribute the 5/4 to the terms in the parenthesis. dw:1436826872444:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0add 24 to the 25dw:1436826936685:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you will get:dw:1436826976176:dw which is the answer to b)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh Okay! Thanks! What about C?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Give me one second to refresh myself on this problem! :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0For C, we will mainly be looking at the slope of the equation. The slope is 5/4. This means that for every 4 customers there are, the number of gadgets available goes down by 5.dw:1436891744808:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0C does say for EACH additional customer, so you will have to figure out how many gadgets are gone when one customer attends the store.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0To find that out, you would take the 5 and divide it by four. You would get 1.25. That is the number of gadgets each customer individually would purchase. So to answer C: For each additional customer, the total number of gadgets decreases by 1.25.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0For (d),dw:1436898341363:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I hope I was able to help you! :)
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