ShmoopTube

00:04

calculating rate of change of linear equations a la shmoop [Woman using a calculator]

00:07

well why do you think it was such a good idea to play candy crush til one o'clock

00:11

this morning while you can't dwell on it too much you have to make the bus or

00:15

you're gonna have to bike to school in the rain well Jimmy texts you at 7:34 [Person reading Jimmy's text message]

00:20

saying the bus just picked him up the bus left the station at 7:30 and Jimmy's

00:24

two miles from the bus stop if we were to graph the buses path well left the

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station at zero minutes and with zero miles from the station which makes the

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point right here in zero, zero well Jimmy's house is two miles from the

00:36

station and it took the bus four minutes to get to Jimmy's house and that makes [Bus travels to Jimmy's house on a graph]

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point right here 2, 4... Well how fast did the bus

00:44

drive from the station to Jimmy's well yeah it took him four minutes but how [Students playing on the bus]

00:48

fast was he going to find out we use the formula for slope and plug in our

00:52

coordinates like this so now we know the bus drives at a constant rate of two

00:57

minutes per mile so that's 30 miles per hour on a residential street well wheels

01:03

in the bus are no longer round and round... well yes this buys you a few more

01:07

minutes before the bus makes your next stop and you can make some eggs for [Girl brushing her teeth]

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breakfast or get a few more minutes of sleep and there will always be eggs.. [Girl sleeping an alarm clock rings]

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