
Evaluating Functions and Their Sums

Interactive Video
•
Mathematics
•
7th - 10th Grade
•
Hard
+1
Standards-aligned

Jackson Turner
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the given functions f(x) and g(x) in the problem?
f(x) = x^2 - 4x + 1, g(x) = x^2 + 2x - 3
f(x) = x^2 + 2x - 1, g(x) = -x^2 + 4x + 3
f(x) = x^2 - 2x + 1, g(x) = x^2 - 4x - 3
f(x) = x^2 + 4x - 1, g(x) = -x^2 - 2x + 3
Tags
CCSS.HSF-BF.A.1B
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first method to evaluate f(2) + g(2)?
Evaluate f(2) and g(2) separately, then add the results.
Combine f(x) and g(x) first, then evaluate at x = 2.
Use a graph to find the values of f(2) and g(2).
Differentiate both functions and evaluate at x = 2.
Tags
CCSS.HSF.IF.A.2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of f(2) when calculated using substitution?
7
5
9
11
Tags
CCSS.HSF.IF.A.2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of g(2) when calculated using substitution?
-7
-3
-1
-5
Tags
CCSS.HSF.IF.A.2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of f(2) + g(2) using the first method?
6
4
2
8
Tags
CCSS.HSF-BF.A.1B
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What property allows us to use the second method for evaluating f(2) + g(2)?
f(x) + g(x) = (f + g)(x)
f(x) * g(x) = (f * g)(x)
f(x) - g(x) = (f - g)(x)
f(x) / g(x) = (f / g)(x)
Tags
CCSS.HSF-BF.A.1B
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the combined function (f + g)(x) after simplification?
3x - 1
2x + 2
x^2 + 2x - 2
x^2 - 2x + 3
Tags
CCSS.HSF-BF.A.1B
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