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Duplicate of Functions Review Flashcards | StudBud
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Duplicate of Functions Review
Duplicate of Functions Review
20 terms
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StudBud Administration
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It's easy, probably.
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
What's this guy's name?
Mason
Hudson
Ice Cube
Bowman
2
The y-intercept of the best-fit line is about 52.14, what does this represent?
The y-intercept
the origin
The test score when the study time is 0 minutes
the average test score is 52.14
3
What is the domain of the following:
{ -2 , +∞ }
{ -2, 2 }
{-3, 3 }
{ -∞ , + ∞ }
4
f(x) = 2(-x)-3. Find f(3). (x=3)
6
3
f(3) <- it's right there(please don't pick this one)
-9
5
The equation of the line is y = 0.88x + 52.14 What does the coefficient of 0.88 represent?
The slope
The score increases by 0.88 per minute
The rate of change
0.88 is 88% of the test score
6
If f(x) = x/2, what is f(10)? (x=10)
5
200.00%
2
10
7
If you were to draw an oval onto an x and y-axis, could you express it as a function?
Sepa?
Yes
No
nonintendo
8
What is a function?
A function(hint:not this one)
If the input is x, the output is f(x)
An equation that yields an input based on an output
An equation that has an output based on an input
9
What is the y-intercept of the equation y=x
2
+5
-5
x2
+5
10
Which mapping diagram is NOT a function?
A
B
D
C
11
Which mapping diagram has a domain of {a,c}
D
B
A
C
12
Domain can be defined as: (pick the best answer)
All of the above or DIX (Domain, Input, X-values)
the input values
x-values for a function
On a graph the values from left to right
13
The best-fit line has what type of correlation?
Positive since the study time increases so do the scores
Positive because as the study time goes up scores go down
Positive because the line goes up
Positive because the points get bigger
14
f(x) can be written as which of the following:
y
yx
x
f(y)
15
what is the difference between a linear function and a non-linear function?
Both
a linear function has a constant rate of change.
non-linear functions have a constant rate of change
IDK!Leave me alone
16
The equation y=5x + 2x + 3 has a rate of change of?
3
7
5
2
17
What is the range of the following:
{ -2, 2 }
{ -2 , +∞ }
{ -∞ , + ∞ }
{-3, 3 }
18
What is the y-intercept of the function f(x) =5x - 5
f(x)
-5
+5
x
19
Range can be defined as:
y-values for a function
input values
DIX
x-values for a function
20
what is the next term in the sequence: 4, 13, 22, 31, ….
39
41
35
40
