Question

Ok I've asked this question like five times today and I really need help.

Answer 1

Teresa and Elaine want to know who reads more pages per hour. Teresa keeps track of the number of pages she reads in a graph, and Elaine keeps track of how many pages she reads in a table.

How many pages per hour does each girl read, and who reads at a faster rate?

Teresa: ???? pages per hour

Elaine: ????pages per hour

The person who reads faster is: (Type T for Teresa or E for Elaine)

Elaine’s Reading Log
Time (h) 2.5 3 5 8
Pages read 70 84 140 224

Answer 2

http://static.k12.com/calms_media/media/1503000_1503500/1503261/2/aa4ff99705003592fb3102df53d994e0d5e80729/MS_IMC-140523-131007.jpg

Answer 3

what is the slope of that given line in the graph?

Answer 4

I dont understand how to do slope

Answer 5

let's pick 2 points off that line, which 2 do you want to pick?

Answer 6

Ok

Answer 7

which 2 points do you want to pick?

Answer 8

(4.96) (2,48)

Answer 9

what are the y coordinates of each point you just wrote down?

Answer 10

(4.96)<- is 4 (2,48)<-2

Answer 11

you have the coordinates mixed up

Answer 12

it goes (x,y)

Answer 13

x comes first, then y comes next

Answer 14

Oh my mad

Answer 15

96 is the y coordinate of (4,96)

48 is the y coordinate of (2,48)

subtract the y coordinates: 96 - 48 = 48

Answer 16

what do you get when you subtract the x coordinates?

Answer 17

2

Answer 18

good, now you divide the differences (y over x)

48/2 = 24

Answer 19

24 is the slope of that line

Answer 20

24 represents Teresa's speed

in this case, it means she reads 24 pages per hour

Answer 21

what is the slope for Elaine ?

Answer 22

96/4= 24 same

Answer 23

did you use the reading log table?

Answer 24

I'm confused?

Answer 25

when you calculated 96/4= 24, did you use this table?


Elaine’s Reading Log
Time (h) 2.5 3 5 8
Pages read 70 84 140 224

Answer 26

or did you use the graph?

Answer 27

The graph

Answer 28

for Elaine, you use the table (not the graph)

Answer 29

Ok

Answer 30

Teresa uses the graph. We have already found the slope for Teresa

Answer 31

so if you want, you can throw away the graph (or cover it up or something)

Answer 32

So it would be 28 pages

Answer 33

very good, 28 pages per hour

Answer 34

so Elaine is the faster reader. She reads 28 pgs per hour while Teresa reads 24 pgs per hour