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Algebra 1 Basics of Functions Flashcards | StudBud
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Algebra 1 Basics of Functions
Algebra 1 Basics of Functions
15 terms
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Domain, Range, Notation, Relations, Zeros, Y-intercepts
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Questions
15
Answers
1
The range of this function is:
-4 ≤ y ≤ 0
-4 ≤ x ≤ 0
-3 < x ≤ 1
-3 < y ≤ 1
2
y = - 5 x + 3; what is the ordered pair if x =6?
(6, 27)
(6, -33)
(6, 33)
(6, -27)
3
What is the domain of this function?
x = all real numbers
x > 0
-6 < x < 6
y=all real numbers
4
Find the zero(s): f(x)=x - 9
1
-9
9
0
5
What is the domain of this function?
-3 < x < 1
-3 < x ≤ 1
-3 < y ≤ 1
y < 0
6
g(-3)=x + 7; what is the value of y?
7
4
-4
-3
7
In a function, for each x, there can be...
one negative y and one positive y.
no more than 2 y values.
many y values but only one x.
only one y.
8
y = - 5 x + 3; what is the ordered pair if y =15?
48
-48
42
-42
9
Find the zero(s): f(x)=2x + 7
-7/2
3
7/2
4
10
What information about the x value are we looking for using the vertical line test?
If there are multiple x values.
If it maps to only one y.
If there are multiple y values.
If it maps to only one x.
11
If f(x) = x + 4, what is the function of -5?
9
-9
1
-1
12
h(-5) = 2x + 7; what is the value of x?
2
-3
-5
-6
13
Find the domain and determine whether it is a function or not: {(4,5), (3,6), (5,5), (3, 7)}
{5, 7, 5, 6, } and yes, it is a function
{4, 3, 5} and no, it is not a function
{5, 6, 5, 7} and yes, it is a function
{4, 3, 5} and yes, it is a function
14
f(x) = 2 x - 20; What is the function of 4?
12
22
-12
-22
15
g(-3)=x + 7; what is the value of x?
3
-4
4
-3
