Practice B
For use with pages'466-472
Tell whether the ordered pair is a solstion of the system of inEqualities.
1-
2.
(3,0)
(2,2)
x
-1
\E
:
Match the system of inequalities with its graph,
'1
*, )x * y>-3
tllx+z
5. t-)x<3
x<-1
x> -1
x> -l
€'
*
C
o
a
o
(-)
Graph the system of inequalities.
E
9, x*y>l
8.,y>2
'y
<3
.,C
r3Y
=co
=o
=
o
v
v
-o.
co
.2
1
-J
3x
1
x
E
G
6
=-
.=oo
10.
x>y*2
?-:c
12. x<
-y
2* - y<4
11. y>-2
x*y<-3
* y<4
.E
o
'o
5
-'=o
a
o
(-)
x
-l
Algebra
1
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Chapter 7 Resource Book
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1
Name
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Practice B
I For
with
I
use
cantinued
pages 466-472
Write a system of iriequalities for the sha-ded region.
13.
I
19. Cookout You are planhing a cookout. You figure that you will
need at least 5 packages ofhot dogs aqd hainburgers- A package
of hot dogs costs $1.90 and a package of hamburgers costs $5.20.
You can spend a maximum of $20 on the hot dogs and hamh'ugs15.
represent the number of packages of hot dogs and lety
represent'the number of packages of hamburgers- Write a system
of iio"* inequalities for the number of packagei of each that
a. Letx
*
C
o
a
E
()o
.E
E
=Eo
=o
C
.o
:=
!
=
E
o
=
o
oo
E
o
so
.E
e
o
O
o^
tDb
L
-o5
h4
53
can be bought.
b.
c.
so
=
o
6,,
Packdges of hot dogs
Graph the system of inequalities.
Identify two possible combinations of packages of hot dogS and
hamburgers you can buy.
You need at least 4 hours to do your chores, which is
cleaning out the garage and weeding the flower beds around
your house. It is 1:30 i".L,r. on Sunday and your friend wants you
to go tg the movies at 7:00 P.Irl.
za. Chores
a.
How much time do you have between
do your chores?
noIM and 7:00 p.vr-
to
E
.E
to
o
o
=
!
a
o
b.
Letx represent the mrmber of hours spent cleaning out the
garage and lety represent the number of hours spent o4
',4rssding the flower beds: Write and graph a system of linear
inequalities that shows the number of hours you can work on
each chore if you go to the movies.
e- Identifftrvo possible combinations of time you can spend on each chore'
Algebra
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Chapter 7 Resource Book
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