VP 1a Choice Keys

8/20/2019 VP 1a Choice Keys

http://slidepdf.com/reader/full/vp-1a-choice-keys 1/4

the

value

of

the

other

changes?

Estimate

pairs

of

values

hat

show

the

patternofchangeyou*o., ldexpect.Recordyourestimatesinatable

with at least ive data points

speed

ofan

airplane

and

irne

t

b'

pricl of

popcorn

at

a

theatel

c

takes he

prane

o complete a

andnumber

of bags

sold

b. As

the

price

of

popcorn

goes

up,

the

number

of bags

sold

goes

down.

rrite-6f

opcbin

at Theat€r,

Numberof

Bails

ofd,

s2

50

$+

40

$5

30

$8

20

310

10

500-mile

rip

c.

As

the

airplane

peed

ncreases,

he

ime

o

complete

he

riP decreases'

.

Timeo

Complete

500-Mile

rip

100

5

125

4

150

3.33

175

2.86

200

2.5

d.

number

of

days

ou

keep

a

rented

DVD

and

rental

charge

As

tl"e

\e^.gt\

o

.

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c-os\.

oF

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ro

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z5

3O

*-i^

o

Cos'.. c,F

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2.50

3.co

3-50

^\.oo

*\.bo

As

n.l..be.

,A do"d.

5o^-.,

.-ec-g

ct

b\b

i^cre-te'

,tle

rerr\c\

cXcrrge .-,\\

i^creale,.

e.

length

of

a ong-distance

erephone

all n

minutes

and

costof

he

call



ACtr

OuesUDr\\

nr

{

K"Z

For Exercises

3-15,

order

the

numbers

tom

least o

grbatest.

hen

describe

ow each

number

n

your

ordered ist canbe

obtained

tom the

previous

number.

13.

1.75,

.25, .5,

.5,2.0,0.75,

.25, .00

7C

C

-

r -J)

,=c

s

.15

)

l ,co

) l -e=

)1.5c,

1

E,

J,00

Aoa(d

'JS

ea0lL

tirn<-

J4LIJLIJ

$,

Lt

4,

8' 4' Z ' 8' E

+,+'+ ' r '? '+,+,

Aclc'l

+

3,3,

6,6,3,

6

# '2,+ +,+ + Mur+tnt

Make

a

table

to show how

the

total number

of cubes n these

pyramids

changes

s

he width

of the

basechanges

rom 3 to7.



2.

At the

right s a

graphoflumping

jack

data.

On

the r-axis,20

eanshe

interval

rom

0 seconds

o

20seconds.

40

means

he

nterval20seconds

o

40 seconds,

ndso on.)

a. What

does he

graph

ell

you

about

Mary'sexperiment?

a. Possiblenswer:Theraph howshatMary,'

was

imed

or 120 econds.It

hows

he

number

f

umping

acks

he id

n each

L0-second

ncrement

f the

.20-second

time

period.

b.

How

is

this

graph

different

rom

the

graph

you

made

n

Problem

1.2?

b. The

graph

from

Problem 1.2 showed

he

total

number

of

jumping jacks

so far at the

end of each

O-second

nterval.

Each

point

on that

graph

is higher

than

the one

before

because he total number increasedwith

each

nterval,

even when the

number done

within

each nterval

decreased.In

Mary's

graph,

he

points

go

up and

down because

the number

of

jumping jacks

n some

intervals

s less han in

others.

o 20

40

60

00 100

120

Tlme

occonde)

What

otal number

of

umping

jacks

did Mary

do?

c.

135

umPing

acks

2A

gl

E

xi2

; -s

t

o

Mary'eOnph

3'

1ft"t

doing

he

umping

ack

experiment,

ndrea

and

Ken

compare

their

graphs.

ecause

he points

on

hisgraph

r.ld";,

Ken

said

he

did moreumpingacks n ther2}secondshanAnJreadid.Do

you

agree?

xplain'

Andreaa

nph

K

en'e

Graph

o

r{

T3

F.=

is-

2e

5

-)

o

*t

v(

b- )

.59

F}

- - \

E

t

-)

20

40

60

00

100

120

Tlme

(eeaonda)

lme

(eeaonde)

Ken

did

not

do

more

umping

acks

n

120

seconds.

en's

points

are

higher

because

the

scales

n

the

two graphs

are

different.

The

y-axis

on

Andrea's

raph

goes

o 160,

while

the y-axis

on

Ken's

graph

goes

only

to

g0.

Andrea

did

about

110

umping

acks

n

L20

seconds

hile

Ken

did

only

about72.

- t '

t

I

I

-f

+

l-

t

o

20

40

60

00

100

120

oo

70

60

50

40

go

20

10

Qr



18. Multiple

Choice

Suppose

ou

know hat here

are

ive

blocksn

a

bag,

andone of

these s marked

winner."

You reach nto

the bag and

chooseone

block at

random.What is the

probability

you

will

choose

he

"winner"?

_1 _

1

A.:

B.

-

- - -5

- '4

c.+

D.

None of

these

AT

t \ .

. r .

t

r\

\

irr

e.

\Grr

"Lr'J

t

nnQ'F

\J

beceuse,

ohe.

o\-il

oP

d-e

19.

a.

Supposeyou

replace

he block

you

chose

n

Exercise

g

and

add,

another

winner"

block.

Now

there

are

six blocks

n

the

bag.

what

is

the

probability

of

choosing

a

"winner"

if

you

c{roose

ne

block

at random?

o.

2

out

of

6,

or

?

@,

tout

of

3, or

j)

b.

How does

your probability of

choosing

a

"winner"

change

or

every

extra"winner"

block

you

add

o

the

bag?Use

a

table or

graph to explainyour answer.

b. Your

probability

of winning

ncreases

ach

time

you

add anotherwinnerblock.

f

you

haveonly L winner

block,

your probability

of winning

s

{.

However,f

you

have

6 winner

blocis

(10

blocks otal),

your

probability

of winning

s

f.

1 2

3

4 5

6

5

6

7 8

9

10

Piobability,,

of

Winning'

1

5

1

t

?

7

1

2

5

9

3

5

20. Supposeou ossa 6-sided ie wice o make he coordinate air

(roll

1, roll 2).

You will win a

prize

f.

he result s

(2,2),

4,4),or

(6,

6).What

s

the

probability

ou

will win a

prize?

3o'1.oQ

bc,

(

Gr

\

o. t

oQ

\Z

3\

3(-

)

(#)

VP 1a Choice Keys

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