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Mathematics 14 Online
OpenStudy (bossimbacon):

Don and Jacob want to know who reads more pages per hour. Don keeps track of the number of pages he reads in a graph, and Jacob keeps track of how many pages he reads in a table. How many pages per hour does each boy read, and who reads at a faster rate? Don: pages per hour Jacob: pages per hour The person who reads faster is: (Type D for Don or J for Jacob) @{ Jacobs Reading Log} |Time| (h) |2| |3.5| |5| |7| |Pages Read| |42| |73.5| |105| |147| http://static.k12.com/calms_media/media/1503000_1503500/1503262/2/549dcd765b14e4ed7004aa6256d48e1d2163e89d/MS_IMC-140523-131008.jpg @Directrix

OpenStudy (bossimbacon):

@StudyGurl14

OpenStudy (bohotness):

which one do you think is the answer?

OpenStudy (bossimbacon):

it isn't a answer choice i have to put the answer in, as in putting the number in

OpenStudy (bossimbacon):

@wio

jimthompson5910 (jim_thompson5910):

find the slope of each to determine their rate

jimthompson5910 (jim_thompson5910):

you can use the slope formula \[\Large m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\]

OpenStudy (bossimbacon):

how do yu use the slope formula @jim_thompson5910

jimthompson5910 (jim_thompson5910):

notice up top you have y2 - y1 that tells you to subtract y coordinates of two points

jimthompson5910 (jim_thompson5910):

then using the same exact two points, and subtracting in the same order, you subtract x coordinates x2 - x1 finally you reduce the fraction to get the simplified slope

jimthompson5910 (jim_thompson5910):

you can pick any two points on the graph

OpenStudy (bossimbacon):

(4), (72)

jimthompson5910 (jim_thompson5910):

(4,72) is one point what is another?

OpenStudy (bossimbacon):

(6), (108)

jimthompson5910 (jim_thompson5910):

you write it like this: (6,108)

OpenStudy (bossimbacon):

Oh kay

jimthompson5910 (jim_thompson5910):

I'm going to make (x1,y1) = (4,72) and (x2,y2) = (6,108) notice how I subtract the coordinates \[\Large m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}} = \frac{108-72}{6-4} = ??\]

OpenStudy (bossimbacon):

so do you subtract 108-6 and 72-4?

jimthompson5910 (jim_thompson5910):

no, focus on just the top and subtract then focus on the bottom and subtract

OpenStudy (bossimbacon):

36/2 @jim_thompson5910

jimthompson5910 (jim_thompson5910):

reduce that as much as you can

jimthompson5910 (jim_thompson5910):

36/2 is not fully reduced

OpenStudy (bossimbacon):

16/2?

jimthompson5910 (jim_thompson5910):

no

jimthompson5910 (jim_thompson5910):

36 and 2 have what factor in common?

OpenStudy (bossimbacon):

16

jimthompson5910 (jim_thompson5910):

divide each by this common factor

OpenStudy (bossimbacon):

my b 26

jimthompson5910 (jim_thompson5910):

no, 2

OpenStudy (bossimbacon):

lol aha yeah 2

jimthompson5910 (jim_thompson5910):

36 divided by 2 = ?? 2 divided by 2 = ??

OpenStudy (bossimbacon):

18/1

jimthompson5910 (jim_thompson5910):

which is just 18

jimthompson5910 (jim_thompson5910):

so Don reads 18 pages per hour

OpenStudy (bossimbacon):

i have to go rn but can you explain the wholee process whil im gone?

OpenStudy (bossimbacon):

and here is your fan and medal

jimthompson5910 (jim_thompson5910):

I can explain when you get back

OpenStudy (bossimbacon):

wait @jim_thompson5910 you blocked me i can't fan you

jimthompson5910 (jim_thompson5910):

hmm I don't remember why, it might have been by accident, you're unblocked now

OpenStudy (chunkymonkay):

im on this question right now did you happen to know the answer

OpenStudy (bossimbacon):

no sadly

OpenStudy (chunkymonkay):

oh okay :/

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