Evaluating Functions and Functions in Context

Quiz
•
Mathematics
•
8th Grade
•
Hard
Barbara White
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
How would you write y = 2x - 3 in function notation?
y = 2x-3
f = 2x - 3
f(x) = 2x-3
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
How do you read f(x)?
f x
f of x
f parenthesis x
f with an x inside parenthesis
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
If a question asks you to find f(2), what does that mean?
Let x = 2
Let y = 2
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
If f(x) = 2x + 1, what would be your first step to find f(1)?
Plug a 1 in for all the x's
Set the function equal to 1
Only plug a 1 into the left side
Only plug a 1 into the right side
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
If f(x) = 2x+1, what would the function look like once you substitute in a 1 to find f(1)?
f(x) = 21+1
f(1) = 2 (1) + 1
f(1) = 2x (1) + 1
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
If I know that f(2) = 4, what is another way I can write my answer?
2,4
(2, 4)
That is the only way to write it.
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
If f(x) = -3x - 8, find f(-1).
f(-1) = 5
f(-1) = -5
f(-1) = -12
f(-1) = -10
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