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Eliminating Parentheses 175 Views


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00:00

Thank you We sneak And here's a shmoop e question

00:06

for you patrol's Jimmy and johnny are walking home after

00:10

a long night of clubbing their distances from home in

00:14

feet as a function of time in seconds are given

00:19

by the following graph after ten minutes of walking how

00:23

far apart are they and hear the potential answers before

00:26

we spoil the ending hit positive right yourself Okay Question

00:32

Can we read a graph Answer Yes And we read

00:35

it accurately And uh well let's See Okay so the

00:39

first prep work we have to do here is to

00:41

get the units all on the same page The trolls

00:44

are walking are well lumbering Really Where's The club i

00:48

hear pebbles is playing ten minutes and the graph is

00:51

giving us the time units in seconds Thanks a lot

00:54

Craft So with sixty seconds in a minute and ten

00:58

minutes involved we need the Mark to hit at the

01:01

6 hundred point right here Now draw lines vertically from

01:04

that point and let's See word intersex Looks like about

01:08

here in ten minutes Jimmy walk this many feet And

01:11

in those same ten minutes johnny walked this many feet

01:15

We have to label A few grid lines here so

01:18

this one is halfway between forty eight hundred twenty four

01:21

hundred so it's gotta be thirty six hundred This line

01:23

is halfway between thirty six hundred and twenty four hundred

01:26

so it's got to be about three thousand This one

01:29

is halfway between thirty six hundred and forty eight hundred

01:31

So yes got to be about forty two hundred but

01:34

now we just note the feet Jimmy is three thousand

01:38

feet along the way and johnny is thirty six hundred

01:40

feet along the way so they are thirty six hundred

01:44

minus three thousand feet for six hundred feet apart and

01:47

the answer is b do That wasn't too oh girlie 00:01:50.343 --> [endTime] complicated Where's the club