College Level Math Practice Test With Answer Key - Mission Del Paso Campus Page 15
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17Answer Key
17.
Sequence & Series: Evaluate {p.525 Ex#1} & {p.529 Ex# 1} & {p.531 EX#4}
0 2
1 2
2 2
3 2
4 2
5 2
6 2
6
2
i
=
a.
2
2
2
2
2
2
2
2
0
i
1
1
3
( 1)
0
1
2
=
2
2
2
7
=
2
5
3
4
5
2
=
2
2
2
i
b.
3
i
=
8 + 16 + 32
=
56
6
n
c.
(
)
=
(
2 17
)
3 19
( )
57
S
a
a
1
2
n
n
2
6
1 (
)
5
1 (
2
)
( 5
63
)
n
a
r
1
d.
315
=
S
S
6
n
1
1
2
1
r
18.
Logarithmic & Exponential Functions: Perform the indicated operation
{p.507 #7, 11, 14, 15, 26, 28, 40, 46, 54, 68}
To find the inverse
Step 1 Replace f(x) with y
Step 2 Interchange x and y
Step 3 Solve the equation for y
11
2
(
4
)
17
x
x
1
1
( )
( )
a.
b.
c. { 3}
d. {-2}
e.
f
x
f
x
6
13
3
4
2
1
e
log
49 2
16
log
32
3
log
log (
2
)
f.
g.
h.
i.
x
x
j.
7
3
3
3
2
2
19.
Solve the following inequalities {p.63 Ex#3} & {p. 69 EX#1, 2, 3}
9
x 5
x 3
9
2
3
a.
b.
x
c.
x
d.
2
20.
Graphing Linear Equations
{p.111 # 1,} & {p.120 #29, 34, 41}
9
The link ed image cannot be display ed. The file may hav e been mov ed, renamed, or deleted. Verify that the link points to the correct file and location.
3
c. 4x – y = 4
a.
b.
y
x
5
6
d. x = 2
e. y = 5
f. x-intercept (5, 0) y-intercept (0, 6)
slope =
5
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