
Function Composition and Evaluation Concepts

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Thomas White
FREE Resource
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12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using function notation like f(x) instead of y?
To make equations more complex
To specify which function is being referred to
To confuse students
To eliminate the need for variables
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If f(x) = x + 3, what is f(-1)?
2
3
0
-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you evaluate g(x) = 3x - 5 for x = 5?
10
15
1.5
0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of adding the functions f(x) = x^2 + 4x - 5 and g(x) = x^2 - 3x + 9?
2x^2 + 7x + 4
x^2 + 7x + 4
2x^2 + x + 4
x^2 + x + 4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When subtracting g(x) from f(x), what happens to the x^2 terms if they are the same?
They remain unchanged
They add up
They cancel out
They double
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of multiplying f(x) = x + 4 and g(x) = x - 3 using FOIL?
x^2 + x - 12
x^2 + x + 12
x^2 - x - 12
x^2 + x - 7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why can't you cancel the x's in the division of f(x) = x + 4 by g(x) = x - 3?
Because they are not like terms
Because they are married to constants
Because they are not in the same equation
Because they are in different functions
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