MA105 College Algebra Week 8 Assessment
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Multiply.
4(5x)
A) 9x
B) 9
C) 20
D) 20x
2.
Subtract.
(8n7 + 2n6 + 17) (5n6 + 5n7 + 15)
A) 3n7 + 7n6 + 32
B) 3n7 3n6 + 2
C) 2n13
D) 3n7 3n6 + 32
3.
Find the zeros of the polynomial function.
f(x) = x3 + 4x2 9x 36
A) x = 3, x = 3
B) x = 4, x = 3, x = 3
C) x = 4, x = 9
D) x = 4, x = 3, x = 3
4.
Solve the equation by factoring.
3x(x 5) = 7x2 16x
A)
B)
C) {0, 4}
D) {0}
5.
Simplify
log2 25
A) 10
B) 5
C) 2
D) 32
6.
Determine whether the relation is a function.
{(5, 4), (2, 9), (1, 2), (1, 7)}
A) Not a function
B) Function
7.
Find the slope of the line that goes through the given points.
(3, 7), (9, 7)
A) 4
B) 1
C) 4
D) 0
8.
Determine whether the equation defines y as a function of x.
x + y = 9
A) y is not a function of x
B) y is a function of x
9.
Solve and check the linear equation.
0.40x 0.20(50 + x) = 0.04(50)
A) {30}
B) {40}
C) {50}
D) {20}
10.
Evaluate the function at the given value of the independent variable and simplify.
f(x) = x2 1; f(x 2)
A) x2 4x + 4
B) x2 + 4
C) x2 3
D) x2 4x + 3
11.
Multiply.
8x2(10x4 + 9x3)
A) 8x6 + 8x5
B) 80x6 + 9x3
C) 80x6 72x5
D) 8x2
12.
Simplify
log6
A) 2
B) 2
C) 6
D) 6
13.
Add.
(9 + 3n6 + 3n5) + (2n6 + 5n5 + 6)
A) 10n11
B) 7n6 + 8n5 + 9
C) 5 + 8n6 3n5
D) 5n6 + 8n5 3
14.
Find the slope of the line that goes through the given points.
(1, 4), (5, 4)
A) 2
B) Undefined
C)
D) 0
15.
Find the degree of the polynomial function.
g(x) = 7x3 + 9
A) 4
B) 3
C) 0
D) 7
16.
Determine whether the given quadratic function has a minimum value or maximum value. Then find the
coordinates of the minimum or maximum point.
f(x) = x2 2x 6
A) maximum;
B) minimum;
C) minimum;
D) maximum;
17.
Solve the equation by factoring.
x2 = x + 6
A) {2, 3}
B) {1, 6}
C) {2, 3}
D) {2, 3}
18.
Find the vertical asymptotes, if any, of the graph of the rational function.
g(x) =
A) no vertical asymptote
B) x = 4, x = 4, x = 0
C) x = 4, x = 4
D) x = 4
19.
Solve and check the linear equation.
9x (7x 1) = 2
A)
B)
C)
D)
20.
Find the zeros of the polynomial function.
f(x) = x3 + x2 42x
A) x = 5, x = 6
B) x = 0, x = 5, x = 6
C) x = 7, x = 6
D) x = 0, x = 7, x = 6
21.
Factor.
y2 64
A) (y2 + 8)(y2 8)
B) (y 8)(y 8)
C) (y + 8)(y 8)
D) (y + 64)(y 64)
22.
Convert to an exponential equation
log9
= 2
A) 29 =
B) 92 =
2
C)
= 9
D) 981 = 2
23.
Solve and check the linear equation.
6[6x + 6 + 4(x + 1)] = 6x + 2
A)
B)
C)
D)
24.
Write in logarithmic form
43 = 64
A) 4 = log 3 64
B) 3 = log 64 4
C) 64 = log 4 3
D) 3 = log 4 64
25.
Simplify
9log9(7)
A) 9
B) 7
C) 97
D) 1
Time
12 years ago
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