MATHEMATICS 17 First Long Exam
1st Sem / AY 20102011
I. Write the letter/s that correspond/s to the correct answer/s.
If the correct answer is not in the
given choices, write D.
2 points each
1. Which of the following represents a function?
(a)
{
(6
,
8)
,
(8
,
6)
,
(7
,
7)
}
(b)
{
(
x, y
)

x
=
√
y
}
(c)
{
(
x, y
)

x
2
+
y
2
= 4 and
x
≥
0
}
2. Which of the following is true about the line 4
x
+ 6
y
= 2?
3. Suppose
a
and
b
are real numbers such that
a > b
. Which of the following is true?
4. Which of the following equations or inequality is paired to its correct solution set?
5. Which of the following is true about the graph of function
f
(
x
) =
x
2

1

x
 
1
?
(a) It is symmetric with respect to the
y

axis.
(b) It intersects the
x

axis at
x
= 1 and
x
=

1.
(c) It intersects the
y

axis at
y
= 1.
II. Find the solution set of the following.
5 points each
1. 2
√
x

√
2
x

1 =
√
2
x
+ 1
2. 2(
x
2

4
x
)
2
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 Spring '11
 AaronJamesPorlante
 Math, Cartesian Coordinate System, Following, Quezon Hall, Vinzons Hall

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