College Algebra Final Review Practice Quiz
Question 1 (4 points)
Exponential Functions
Find f(0) for the function f(x)=2x
a.-2
b.0
c.1
d.
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Question 2 (4 points)
Maximum and Minimum of a Quadratic Function
State whether the function has a minimum or a maximum value and find the value.
f(x)=5x2 -10x
maximum:-5
minimum:-5
maximum:1
minimum:1
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Question 3 (4 points)
Solve Quadratic Equations by Taking Square Roots
Solve.
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Question 4 (4 points)
Vertex of a Parabola
Find the vertex of the graph of the function.
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Question 5 (4 points)
Far-Left and Far-Right Behavior
Determine the right-hand and left-hand behavior of the graph of the function.
a.
Falls to the left
Falls to the right
b.
Falls to the left
Rises to the right
c.
Rises to the left
Falls to the right
d.
Rises to the left
Rises to the right
e. None of these
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Question 6 (4 points)
Matrix multiplication
Find the product, if possible.
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Question 7 (4 points)
Find an Inverse Function
Find the inverse of the function.
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Question 8 (4 points)
Rational Inequalities
Solve the inequality:
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Question 9 (4 points)
Compound Interest
The formula A=8000en can be used to find the dollar value of an
investment of $8000 after t years when the
interest is compounded continuously at a rate of r percent.
a. Find the value of the investment after 8 years if the interest rate is 7%.
b. Find the value of the investment after 7 years if the interest rate is 6%.
a.
a. $11,854.15
b. $13,881.93
b.
a. $11,854.15
b. $12,175.69
c.
a. $14,005.38
b. $12,175.69
d.
a. $14,005.38
b. $13,881.93
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Question 10 (4 points)
Addition and subtraction of matrices
Evaluate the expression.
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Question 11 (4 points)
Linear Equations
Solve.
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Question 12 (4 points)
Zeros of a Polynomial Function
Find all the zeros of the function.
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Question 13 (4 points)
Determinant of a 2 x 2 matrix
Find the determinant of the matrix.
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Question 14 (4 points)
Find the Equation of a Line
Which shows the equation of a line, in slope-intercept
form, that passes through the point
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Question 15 (4 points)
Solve Logarithmic Equations
Solve for x.
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Question 16 (4 points)
Solve Quadratic Equations by Factoring
Solve by factoring.
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Question 17 (4 points)
Graphs of Inverse Functions
Let f(x)=4x+7 Identify the graph of f and f -1
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Question 18 (4 points)
Solving a system of equations using Cramer's rule
Use Cramer's Rule to solve (if possible) the system of equations.
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Question 19 (4 points)
Systems of equations in three variables
Solve:
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Question 20 (4 points)
Finding the inverse of a matrix
Find the inverse of the matrix A, if it exists.
d. Does not exist
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Question 21 (4 points)
Solve Quadratic Equations by Completing the Square
Solve by completing the square.
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Question 22 (4 points)
Scalar multiplication
Evaluate -8A
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Question 23 (4 points)
Operations on Functions
Given andfind
(f-g)(x)
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Question 24 (4 points)
Graphs of Logarithmic Functions
Identify the graph of the logarithmic function.
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Question 25 (4 points)
Circles, Their Equations, and Their Graphs
Find the standard form of the equation of the specified circle.
Center:(-1,3);Radius:
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