Download Math College Algebra Practice Exam 1

KYOTE College Algebra Practice Exam 1
1. Which of the following equations has the same solution as 5 x + 8 = x − 9?
A) 4 x = −1
B) 4 x = 17
C) 6 x = −17
D) 6 x = 17
E) 4 x = −17
2. Simplify. (−2 x4 )3 (−2x2 )2
A) 8 x11
B) 8 x16
C) −32 x16
D) 32 x16
E) −32 x11
√
3. If f (x) = 7 − x, then which of the following sets is the domain of this function?
A) x ≤ 7
B) x 6= 7
D) x 6= 0
E) x ≥ 7
C) x ≥ 0
4. One of the factors of 3 x2 + 8 x − 35 is
A) 3 x − 7
B) 3 x + 7
D) 3 x + 5
E) x − 5
C) x − 35
5. One solution of 3 x2 + 7 x − 6 = 0 is
A) −2
3
B) 32
D) −6
E) 23
6. Solve
C) 3
1
2
− = 3 for x.
x−1 7
26
A) 23
B) −12
23
30
D) 23
E) 23
30
C) 23
26
1
7. Expand and simplify. (3 x − 6 y)2
A) 9 x2 − 36 x y − 36 y 2
B) 9 x2 + 36 y 2
D) 9 x2 − 18 x y + 36 y 2
E) 9 x2 − 36 y 2
C) 9 x2 − 36 x y + 36 y 2
8. The line parallel to 2 x + y = 5 and passing through (5, 4) has equation
A) y = 2 x − 6
B) y = −2 x + 14
D) y = −2 x + 13
E) y = −2 x − 6
9. Simplify.
C) y = 2 x − 3
x2 − x − 30
x2 − 12 x + 36
A)
x+6
x−6
B)
x+5
x−6
D)
x + 30
x−6
E)
x−5
x−6
C)
x − 30
x−6
10. The vertices of a triangle consist of the three points where the parabola y = 7 − x2 intersects the
coordinate axes as shown. What is the area of this triangle?
y
√
A) 14 7
√
B) 7 2 7
√
D) 7 7
E) 49
x
C) 98
11. Simplify. (−3x−5 )2 (2 x3 )−2
9
4 x16
A) −6
x16
B)
D) −916
4x
E) −6
x12
C)
9
4 x12
2
12. Which of the following is an equation of the line whose graph is shown below?
Y
5
A) y = −2 + 52 x
B) y = 2
5x
C) y = 5 + 25 x
D) y = 5 + 2
5x
E) y = −2 + 5
2x
X
–2
13. If x and y satisfy both 9 x + 2 y = 8 and 7 x + 2 y = 4, then y =?.
A) 9
B) 2
C) 18
D) −5
E) −10
14. Solve −7 x < x + 7 and express the solution in interval notation.
A) ( −7
6 , ∞)
B) ( −7
8 , ∞)
D) ( −8
7 , ∞)
E) (−∞, −6
7 )
C) (−∞, −7
8 )
15. If the hypotenuse of a right triangle has length 9 feet and one of the other sides has length 2 feet,
what is the length of the remaining side, in feet?
A) 7
√
B) 11
√
D) 85
√
E) 77
√
C) 7
16. Solve R = 47 T + −36
7 for T .
A) 74 R + 9
B) 74 R + 63
4
D) 47 R − 9
E) 7
4R+9
C) 74 R + 36
7
3
17. Simplify.
8x
6
+
x+4
x + 9 x + 20
2
A)
8x + 6
x + 10 x + 24
B)
8x + 6
x + 9 x + 20
D)
14 x + 30
x + 9 x + 20
E)
14 x + 6
x + 9 x + 20
2
2
C)
2
14 x
x + 9 x + 20
2
2
18. If x and y are positive numbers, then
√
2 x8 6
A) ±
y4
√
2 x5 6
B) ±
y3
√
2 x5 6
D)
y3
√
2 x8 6
E)
y4
p
24x10 y −6
√
C) −2 x5 y 3 6
19. If f (x) = 2 x + 9, and f (a) = 7, then a =?
A) 9
B) 23
D) 7
E) 8
C) −1
20. Find 12(x)2/3 when x = −8.
A) 64
B) 48
D) 256
E) −64
C) −48
21. A rectangular field is enclosed by 320 feet of fencing. If the length of the field is 6 feet more than its
width, what is its length, in feet?
A) 80
B) 83
D) 157
E) 163
22. Find
C) 77
(x − (1 − 4 x))
when x = −5.
x
A) 26
5
B) −21
D) −26
5
E) −14
5
C) 19
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23. The surface area S of a cylinder is S = 2 π r 2 + 2 π r h where r is the base radius and h is the height.
What is h, in inches, when S is 175 square inches and r is 6 inches?
864 π 2
A) 175 −
12 π
864 π 2
B) 175 +
12 π
25
D) 12
π
− 72 π
E) 17512
π
+ 72 π
C) 17512
π
24. A truck leaves an intersection going 42 miles per hour. Half an hour later, a car going 62 miles per
hour follows the truck. If x is the time, in hours, required for the car to catch the truck, then which of
the following equations can be used to solve for x?
A) 42 x + 21 = 62 x
B) 42 x + 1
2 = 62 x
D) 42 x + 42 = 62 x
E) 42 x + 30 = 62 x
C) 42 x + 62 = 62 x
25. Subtract x3 − 5 x2 + 1 from x2 − x − 4.
A) − x3 + 6 x2 − x − 3
B) x3 − 4 x2 + x + 5
D) − x3 + 6 x2 − x − 5
E) − x3 − 4 x2 − x − 5
5
C) x3 − 6 x2 + x + 5
Key: KYOTE12CART1
1)
6)
11)
16)
21)
⋄ E
⋄ D
⋄ B
⋄ E
⋄ B
2)
7)
12)
17)
22)
⋄ C
⋄ C
⋄ A
⋄ D
⋄ A
3)
8)
13)
18)
23)
⋄ A
⋄ B
⋄ D
⋄ D
⋄ E
4)
9)
14)
19)
24)
⋄ A
⋄ B
⋄ B
⋄ C
⋄ A
5)
10)
15)
20)
25)
⋄ E
⋄ D
⋄ E
⋄ B
⋄ D
Standards Table
Standard
KYOTECA.01.3:
KYOTECA.02.3:
KYOTECA.03.3:
KYOTECA.04.3:
KYOTECA.05.3:
KYOTECA.06.3:
KYOTECA.07.3:
KYOTECA.08.3:
KYOTECA.09.3:
KYOTECA.10.3:
KYOTECA.11.3:
KYOTECA.12.3:
KYOTECA.13.3:
KYOTECA.14.3:
KYOTECA.15.3:
KYOTECA.16.3:
KYOTECA.17.3:
KYOTECA.18.3:
Problems
20,22
7,25
2,11
18
4
17
9
1,23
16
14
5
6
13
21,24
15
8,12
10
3,19
Max
2
2
2
1
1
1
1
2
1
1
1
1
1
2
1
2
1
2
Score
Description of Standards
1. KYOTECA.01.3: Evaluate algebraic expressions at specified values of their variables using signed
numbers, rational exponents, order of operations and parentheses.
2. KYOTECA.02.3: Add, subtract and multiply polynomials.
3. KYOTECA.03.3: Simplify algebraic expressions involving integer exponents.
4. KYOTECA.04.3: Simplify algebraic expressions involving square roots and cube roots.
5. KYOTECA.05.3: Factor a polynomial in one or more variables by factoring out its greatest
common factor. Factor a trinomial. Factor the difference of squares.
6. KYOTECA.06.3: Add, subtract, multiply and divide simple rational expressions.
7. KYOTECA.07.3: Simplify a rational expression.
8. KYOTECA.08.3: Solve a linear equation.
9. KYOTECA.09.3: Solve a multivariable equation for one of its variables.
10. KYOTECA.10.3: Solve a linear inequality in one variable.
6
11. KYOTECA.11.3: Solve a quadratic equation.
12. KYOTECA.12.3: Solve an equation involving a radical, a rational or an absolute value expression.
13. KYOTECA.13.3: Solve a system of two linear equations in two variables.
14. KYOTECA.14.3: Solve problems that can be modeled using a linear or quadratic equation or
expression.
15. KYOTECA.15.3: Solve geometry problems using the Pythagorean theorem and the properties of
similar triangles.
16. KYOTECA.16.3: Understand and apply the relationship between the properties of a graph of a line
and its equation.
17. KYOTECA.17.3: Find the intercepts and the graph of a parabola given its equation. Find an
equation of a parabola given its graph.
18. KYOTECA.18.3: Evaluate a function at a number in its domain. Find the domain of a rational
function or the square root of a linear function.
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