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Functions at H.A.M.S. Flashcards | StudBud
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Functions at H.A.M.S.
Functions at H.A.M.S.
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Pre-Algebra basics working with function rules, rate of change, and initial values
Flashcards
34 cards
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Practice quiz
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Questions
34
Answers
1
What is a function? What are they used for?
A relationship between 2 variables
Used to predict a totals (output) given any input value
Every input has exactly one ouput
All of the above
2
What is the initial value of the line whose equation is: y = 3x - 2
2
0
-2
3
3
Which of the following best represents initial value in the equation y = mx + b
m
b
x
y
4
Antwon's game club charges $10 to join & $2 per game. Which function rule represents a month?
y = 2x - 10
y = 2x + 10
y = 10x - 2
y = 10x + 2
5
Which of the following best represents rate of change?
y-intercept
function rule
slope
initial value
6
Which of the following best represents initial value?
slope
function rule
rate of change
y-intercept
7
What is the function rule represented by the line in the graph?
y = 3x - 3
y = x - 3
y = -x + 3
y = -3x + 3
8
Describe the slope of the line
Positive
Negative
No Slope (m = 0)
Undefined (Does Not Exist)
9
What is the rate of change for the function table?
12
6
0
1/6
10
What is the rate of change of the line whose equation is: 3y = 2x - 4
2
-4
2/3
-4/3
11
What is the rate of change of the function?
2
1/2
-7
0
12
Describe the slope of this line
Negative
No Slope (m = 0)
Positive
Undefined (Does Not Exist)
13
Describe the slope of the line
No Slope (m = 0)
Undefined (Does Not Exist)
Postive
Negative
14
What is the initial value of the equation whose line is: y + 3 = (1/2)x
1/2
0
-3
3
15
Who is your favorite teacher?
Mrs. Klausner
Coach Driger
Mr. Langston
Mrs. Mabry
16
Who is this?
Dr. Charles Harper
Dr. Samuel H. Archer
Martin Luther King, Jr.
Dr. Charles L. Harper
17
Ayonna and Alicia are saving money to buy a car. They have $10 but plan on saving $20 a week.
y = 10x - 20
y = 20x + 10
y = 20x - 10
y = 10x + 20
18
Do you care about your education?
Sometimes
Yes
Not Sure
No
19
What is the rate of change for the function table?
6
4/1
2
1/4
20
What is the initial value of the function?
-7
2
0
1/2
21
How can a linear function be represented?
On a graph (a line)
Numerically in table (x- and y- chart)
Algebraically (an equation)
Verbally description
22
Which of the following best represents rate of change in the equation y = mx + b
x
b
y
m
23
What is the function rule represented by the line on this graph?
y = -2x -2
y = -4x - 2
y = 2x -1
y = -x - 2
24
My mom charges me $50 plus $1.50 per mile to borrow her car. Which represents how mean she is?
y = 1.5x + 50
y = 50x + 150
y = 150x + 50
y = 50x + 1.5
25
Who is the assistant principal assigned to the 8th grade?
Mr. Stewart
Mr. Ford
Dr. Harper
Mrs. Andrews
26
What is the initial value of the line whose equation is: 2y = 3x + 8
8
4
2
3
27
What is the rate of change of the line whose equation is: y = (-2/3)x - 4
-4/1
-2/3
-4
(-2/3)x
28
Which of the following best represents a function rule?
y + (1/2)x = 0
y + 4 = 3x
x = 2y - 9
7x -1 = y
29
Who is this?
Martin Luther King, Jr.
George Mays
Dr. Samuel Archer
Dr. Samuel Harper
30
What is the initial value of the function?
12
1/6
6
0
31
What is the initial value for the function table?
-2
6
2
10
32
Why is a linear function that is modeled by the equation
y=mx+b
useful
?
All 3 are reasons why it is useful
You can easily find the initial value (y-intercept)
You can easily find the rate of change (slope)
You can easily graph the line of the function
33
Describe the slope of this line
Positive
Undefined (Does Not Exist)
Negative
No Slope (m = 0)
34
What is the initial value of the line whose equation is: -y = 6x - 15
-6
6
15
-15
