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Expressions, Equations, And Functions Quiz 1
Test Description: Expressions, Equations, and Functions
Instructions: Answer all questions to get your test result.
1) Use these functions P(x) = x^2 – x – 6 and Q(x) = x – 3 to answer this question. What is P(x) – Q(x)?
A
x^2 – 9
B
x^2 – 3
C
x^2 – 2x – 3
D
x^2 – 2x – 9
2) Which equation represents the following set of coordinates: ( –2 , 0 ) (0 , 4) (3 , –5) ( 5 , –21)?
A
y = - x^2 + 4
B
y = 4x^2 - 1
C
y = - x^2 + 4x
D
y = 4x^2 - 4
3) Use these functions P(x) = x^2 – x – 6 and Q(x) = x – 3 to answer this question. What is P(x) + Q(x)?
A
x^2 – 2x – 3
B
x^2 – 3
C
x^2 – 2x – 9
D
x^2 – 9
4) Use these functions P(x) = x^2 – x – 6 and Q(x) = x – 3 to answer this question. What is P(x) * Q(x)?
A
x^2 – 2x – 3
B
-3x^2 + 3x + 18
C
x^3 - 4x^2 - 3x + 18
D
x^3 - x^2+ 6x + 18
5) Use these functions P(x) = x^2 – x – 6 and Q(x) = x – 3 to answer this question. What is P(x) / Q(x)?
A
x + 3
B
x - 2
C
x^2 + 2
D
x + 2
6) Use these functions P(x) = x^2 – x – 6 and Q(x) = x – 3 answer this question. When is P(x) = Q(x)?
A
When x = -1 or x = - 2.
B
When x = -2 or x = 3.
C
When x = -1 or x = - 3.
D
When x = -1 or x = 3.
7) The zeros of a function are the values of x where the graph of the function crosses the x-axis.
A
False
B
True
8) The end behavior of a polynomial function describes the values of the function as y approaches negative and positive infinity.
A
False
B
True
9) The graph of an even parent function is symmetric with respect to the x-axis.
A
False
B
True
10) The graph of an odd parent function is symmetric with respect to the origin.
A
True
B
False
*select an answer for all questions
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