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Functions Review Flashcards | StudBud
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Functions Review
Functions Review
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It's easy, probably.
Flashcards
21 cards
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Questions
21
Answers
1
If f(x) = x/2, what is f(10)?
2
5
10
200.00%
2
The equation y=(x+1)
2
-2 would have a vertex at:
-1,-2
1,-2
-2,-1
-1,2
3
f(x) can be written as which of the following:
x
y
yx
f(y)
4
What's this guy's name?
Bowman
Mason
Hudson
Ice Cube
5
Which transformation of y=|x+3| would produce this graph, but flipped over the y-axis?
y=|-x-(-3)|
y=|x-3|
y=|-x+3|
y=-|x+3|
6
What are the x-intercepts of the equation y=x
2
+5x+6?
-2 and 6
-5 and 6
-3 and -2
Just -2
7
Which function would result in this graph?
y=x
y=x•3
y=|x+3|
y=|x-3|
8
If you were to draw an oval onto an x and y-axis, could you express it as a function?
Nes
No
Yes
Yo
9
Which transformation of y=x
3
would result in this graph?
y=(x3+1)-3
y(x3-3)+1
y=(x3+1)+3
y=(x3+3)-1
10
What is the difference between f(x)=4 and f(4)? More than one answer is possible.
f(4) means it's a function of 4
f(x)=4 means the function of x is 4
f(4) means 4 is equal to y.
f(x)=4 means that the function of 4 is x
11
f(x) = 2(-x)-3. Find f(3).
-9
6
3
f(3) <- it's right there
12
What is this function's range?
All real numbers greater than 3
3 only
All real numbers
All real numbers less than 3
13
Range can be defined as:
All possible y-values for a function
🍆
All possible values for a function
All possible x-values for a function
14
What is a function?
An equation that yields an input based on an output
A function
An equation that yields an output based on an input
If the input is x, f(x)
15
Which transformation of y=|x+3| would result in this graph, but with a vertex moved up by 2?
y=|x+3|+2
y=|x+5|
y=|x+3|•2
y=|x+3|-2
16
This test will only have one radical function, and it's "if f(x)=½(∛[x+3]), what's f(5)?"
½
1¾
1
2
17
Domain can be defined as:
All possible values for a function
🍆
All possible x-values for a function
All possible y-values for a function
18
What is this function's domain?
All real numbers less than 3
3 only
All real numbers
All real numbers greater than 3
19
If f(x)=5x-2, find f(f(f(0))).
-62
-12
-2
-310
20
Which equation describes the function in this graph?
y=(x-1)2-2
y=(x+1)2+2
🍆
y=(x+1)2-2
21
y=-(x
2
) would look like which of the following as a graph?
A 'v' shape
An 'n' shape
A 'c' shape
A 'u' shape
