ALG
IA
–
TEST
REVIEW
Score
___
PG
333
#1­4,
6,
8,9
11
Name:
____________________________________
Hour:
______________
Date:
______________
5­1
IDENTIFYING
LINEAR
FUNCTIONS
Tell
whether
the
given
ordered
pairs
satisfy
a
linear
function.
Explain.
5­2
USING
INTERCEPTS
3.
A
well
that
holds
120
gallons
of
water
is
draining
at
a
rate
of
6
gal/min.
The
function
f
(x)
=
120
‐
6x
gives
the
amount
of
water
in
the
well
after
x
minutes.
Graph
the
function
and
find
its
intercepts.
What
does
each
intercept
represent?
The
x­intercept
represents
_____________________________________________________________
_____________________________________________________________
The
y­intercept
represents
_____________________________________________________________
_____________________________________________________________
Find
the
x
and
y
intercepts
of
each
equation.
Find
the
slope
of
questions
4
and
6.
Use
intercepts
to
graph
the
line
described
by
each
equation.
5­4
THE
SLOPE
FORMULA
Use
slope
formula
to
find
the
slope
of
each
line.
Then
tell
what
the
slope
represents.
y −y
m = 2 1
x 2 − x1
€
The
slope
represents
The
slope
represents
Name:
____________________________________
Hour:
______________
Date:
______________
ALG
IA
–
TEST
REVIEW
Score
___
PG
365
#1,2,4,5,7,18,19
18
5­6
SLOPE­INTERCEPT
FORM
Write
each
equation
in
slope­intercept
form,
and
then
graph.
y=______________
y=_______________
y=_________________
y=_______________
7.Entertainment
At
a
chili
cook‐off,
people
pay
a
$3.00
entrance
fee
and
$0.50
for
each
bowl
of
chili
they
taste.
The
graph
shows
the
total
cost
per
person
as
a
function
of
the
number
of
bowls
of
chili
tasted.
a.
Write
a
rule
that
gives
the
total
cost
per
person
as
a
function
of
the
number
of
bowls
of
chili
tasted.
b.
Identify
the
slope
and
y‐intercept
and
describe
their
meanings
in
this
situation.
5­8
PARALLEL
AND
PERPENDICULAR
LINES
Identify
which
lines
are
parallel
and
perpendicular.
A. y = −2x
A __
B __
B. y = 2x + 1
A ⊥ __
B ⊥ __
C. y = 2( x + 5)
€
C
__
C ⊥ __
1
D. y = − x + 1
D __
E __
F __
2
E. 2y + x = 12
D ⊥ __
E ⊥ __
F ⊥ __
F. 2y = x − 6
€
18.
Write
an
equation
in
slope‐intercept
form
for
the
line
that
passes
through
(5,
2)
and
is
parallel
to
the
line
described
by
3x − 5y = 15 .
€
19.
Write
an
equation
in
slope‐intercept
form
for
the
line
that
passes
through
(3,
5)
and
is
3
perpendicular
to
the
line
described
by
y = − x − 2 2
€