Question

(06.02)Jordan plotted the graph below to show the relationship between the temperature of his city and the number of cups of hot chocolate he sold daily:

A scatter plot is shown with the title Jordans Hot Chocolate Sales. The x axis is labeled High Temperature and the y axis is labeled Cups of Hot Chocolate Sold. Data points are located at 20 and 20, 30 and 18, 40 and 20, 35 and 15, 50 and 20, 45 and 20, 60 and 14, 65 and 18, 80 and 10, 70 and 8, 40 and 2.

Part A: In your own words, describe the relationship between the temperature of the city and the number of cups of hot chocolate sold. (2 points)
Part B: Describe how you can make the line of best fit. Write the approximate slope and y-intercept of the line of best fit. Show your work, including the points that you use to calculate the slope and y-intercept. (3 points)

Answer 1

??

Answer 2

II think you should write in your own word then solve the problem just fine the slope

Answer 3

that's what I think

Answer 4

"Part A: In your own words, describe the relationship between the temperature of the city and the number of cups of hot chocolate sold. (2 points)"
Have you ever heard of positive correlation? negative correlation? No correlation? Basically what the question is asking you is what seems to be happening to the cups of hot chocolate sold as the temperature increases?

Answer 5

"Part B: Describe how you can make the line of best fit. Write the approximate slope and y-intercept of the line of best fit. Show your work, including the points that you use to calculate the slope and y-intercept. (3 points)"
What math is this, algebra 1 ish? do you know how to make the line of best fit?

Answer 6

so for part A i could put "whats happning to the cups of hot chocolate is that as the temperature increases the cups of hot chocolate increases"?

Answer 7

or is that wrong

Answer 8

no sorry, i am asking you what happens to the cups of hot chocolate is that as the temperature increases the cups of hot chocolate increases looking at the graph

Answer 9

yeah it is

Answer 10

huh. What is what?

Answer 11

Look at the graph, what is the general trend, as the temperature increases WHAT happens to the number of hot chocolates sold

Answer 12

it increases i think

Answer 13

how so?

Answer 14

wait no its decreases

Answer 15

the cups increases and then the temp decreases

Answer 16

that is correct, this means you have a negative correlation

Answer 17

oohhhhh

Answer 18

thank you so much

Answer 19

np, do you know how to do line of best fit, part b?

Answer 20

wait one sec plz

Answer 21

take your time (:

Answer 22

ok im back

Answer 23

can you help m with part b as well plz?

Answer 24

help...

Answer 25

So what math class is this?

Answer 26

algebra

Answer 27

did your teacher teach how to find the line of best fit?

Answer 28

yh i read the lesson but like i still need help understanding how to find the line of best fit step be step

Answer 29

So, in algebra 1, what you want to do is take 2 points where if you draw a line through them, the line would go through a majority of the graph, for example (random example)
here, i took 2 points and drew a line that goes through the middle, so you use the same process for your graph

Answer 30

We can find the slope and y-intercept after you determine your line of best fit, a hint, try to draw on the picture your line of best fit and send that here or use the draw feature

Answer 31

ok

Answer 32

yh i cant draw it

Answer 33

i tried

Answer 34

At the level yu are at, I would say it doesn't have to be perfect, draw a line from (20,20) and (70, 8) and call taht your line of best fit

Answer 35

Can you find the slope and y-intercept?

Answer 36

yh rise over run to find slope of a line

Answer 37

slope of a line is usually represented with the variable "m" in equations.

Answer 38

\[m=(y _{2}-y _{1})/(x _{2}-x_{1})\]
can you plug in the 2 points I gave you into this formula? where
\[(20, 20)=(x _{1},y _{1})\] and \[(70,8)=(x _{2},y _{2})\]

Answer 39

yh ik how to do that

Answer 40

the answer is reuben. minnesota

Answer 41

is this a test ._.

Answer 42

12/50

Answer 43

What

Answer 44

20-8=12 20-70=-50