Suppose g(x) = f(x) + k.Identify a value of k that transforms f into g.
Question 10
10.
Question 11
11.
Question 12
12.
Question 13
13.
Question 14
14.
Question 15
15.
Question 16
16.
Question 17
17.
Question 18
18.
Using the trend line y = 8x + 8, for the data shown, complete the residual table.
Question 19
19.
Yumiko’s exercise data is shown. Using the trend line y = 8x + 8, how many minutes will it take Yumiko to run 5 \textrm{ mi}?
Question 20
20.
Question 21
21.
Question 22
22.
Question 23
23.
Which relation is a function?
(1, 0), (3, 0), (1, 1), (3, 1) (1, 3)
(2, 7), (6, 5), (4, 4), (3, 3), (2, 1)
(1, 1), (2, 2), (3, 3), (4, 4), (5, 8)
(9, −3), (9, 3), (4, −2), (4, 2), (0, 0)
What is the domain of the relation?
{\{-1, 9, 16\}}
{\{-1, 2, 8, 9, 16, 30, 46\}}
{\{0, -1, 2, 8, 9, 16, 30, 46\}}
{\{2, 8,30, 46\}}
What is the range of the relation?
{\{-1, 2, 8, 9, 16, 30, 46\}}
{\{2, 8,30, 46\}}
{\{-1, 9, 16\}}
{\{0, -1, 2, 8, 9, 16, 30, 46\}}
Complete the sentence about the relation shown below.
The relation is a many-to-one function because ...
Multiple elements of the domain are mapped to the same element of the range, but no element of the domain is mapped to more than one element of the range.
Every element of the range is associated with more than one element of the domain, and every element in the domain maps to at least one element of the range.
No two elements of the domain are mapped to the same element of the range, and at least one element of the domain is mapped to more than one element of the range.
Jack works after school. Each day, he is paid a set amount, plus an hourly wage. Look at the table. Choose the linear function f Jack can use to find his pay.
f(x) = 0.5x + 1
f(x) = 15x + 3
f(x) = 10x + 8
f(x) = x + 18
Jack works after school. Each day, he is paid a set amount, plus an hourly wage.
Which is a reasonable domain for the function that takes a number of hours as an input and yields an amount of pay as an output.
0<x<1
0<x<6
0<x<48
0<x<68
0<x<248
Jack works after school. Each day, he is paid a set amount, plus an hourly wage.
Assume Jack works from 2:30 PM to 7:00 PM. Using the function you selected for question 5, how much should Jack earn?
$33
$35.50
$45
$53
For any linear function f(x) = mx + b, when does 5f(x) = f(5x) + 5?
when b=0
when b=\frac{5}{4}
when b=5
always
Which of the following is an arithmetic sequence?
2, 4, 8, 16, 32, …
0, 5, 0, 10, 0, 15, …
5, 11, 17, 23, 29, 36, …
−2, −5, −8, −11, −14, −17, …
The cost of having one pizza delivered is $14. Each additional pizza costs $9 more. Choose the explicit formula to represent the situation.
a_{n}=14+9(n+1)
a_{n}=5+9n
a_{n}=5+9(n+1)
a_{n}=14+9n
The cost of having one pizza delivered is $14. Each additional pizza costs $9 more. Choose the recursive formula to represent the situation.
a_{n}=a_{n-1}+5; \textrm{ }a_{1}=14
a_{n}=a_{n-1}+14; \textrm{ }a_{1}=9
a_{n}=a_{n-1}+9; \textrm{ }a_{1}=14
a_{n}=a_{n-1}+23; \textrm{ }a_{1}=9
Each day, Yumiko does sit-ups for a few minutes before running. But she doesn't always run the same distance, which means her workouts don't always take the same amount of time. Use the table of her exercise data to choose the scatter plot with the best trend line.
Each day, Yumiko does sit-ups for a few minutes before running. But she doesn't always run the same distance, which means her workouts don't always take the same amount of time.
What type of correlation does the scatter plot show?
cannot tell
negative
positive
none
Which could be an equation of the trend line shown in the graph?
y = 8x + 15
y = 6x + 12
y = 6x + 6
y = 8x + 8
Each day, Yumiko does sit-ups for a few minutes before running. But she doesn't always run the same distance, which means her workouts don't always take the same amount of time.
What does the y-intercept of the trend line represent?
average time spent doing sit-ups
average time spent running
total time spent running
average distance run
Yumiko’s exercise data is shown. Complete the sentence with the correct word.
Using the trend line y = 8x + 8 to estimate how long it will take Yumiko to run 5 \textrm{ mi} is an example of ...
correlation
interpolation
causation
extrapolation
Which r-value suggests a weak positive correlation?
r = −0.98264
r = −0.17454
r = 0.17454
r = 0.98264
The table shows grade levels and heights of 6 students.
What type of correlation does the data show?
positive correlation
negative correlation
no correlation
The table shows grade levels and heights of 6 students.