Which relation is a function? EXPLAIN your reasoning.
Question 2
2.
Identify the domain and range of the relation.
-1
2
8
9
16
30
46
Domain
Range
Question 3
3.
What is the best description of the relation? EXPLAIN your reasoning.
Question 4
4.
Jack works after school. Each day he earns a set amount, plus an hourly wage. Write a linear function f Jack can use to determine his pay. SHOW YOUR WORK.
Question 5
5.
Jack works after school. Each day he is paid a set amount, plus an hourly wage. Which is a reasonable domain for the function? EXPLAIN YOUR REASONING.
Question 6
6.
Jack works after school. Each day he is paid a set amount, plus an hourly wage.
Assume Jack works from 2:30 P.M. to 7:00 P.M., how much would he earn? SHOW YOUR WORK!
Question 7
7.
Given f(x) = –x + 6 and g(x) = f(x + 3) write an equation for function g. SHOW YOUR WORK!
Question 8
8.
Suppose g(x) = f(x) + k.Identify a value of k that transforms f into g. SHOW YOUR WORK.
Question 9
9.
Given f(x) = -6x + 8 and h(x) = -4f(x), what are the slope and y-intercept of the graph of the function h? SHOW YOUR WORK!
Question 10
10.
Which of the following is an arithmetic sequence? EXPLAIN YOUR REASONING!
Question 11
11.
The cost of having one pizza delivered is $14. Each additional pizza costs $9 more. Write the recursive formula to represent the situation. Include a1. SHOW YOUR WORK.
Question 12
12.
The cost of having one pizza delivered is $14. Each additional pizza costs $9 more. Write the explicit formula to represent the situation. SHOW YOUR WORK.
Question 13
13.
Each day, Yumiko exercises by first doing sit-ups and then running. Make a scatter plot of the total time she exercises as a function of the distance she runs. Draw a trend line.
Question 14
14.
What type of correlation does the scatter plot in Item 13 show? EXPLAIN YOUR REASONING!
Question 15
15.
Which of the following equations is the best trend line for the data in Item 13? SHOW YOUR WORK!
Question 16
16.
What does the y-intercept of the line in Item 13 represent? EXPLAIN YOUR REASONING!
Question 17
17.
In Item 13, estimate the time it will take Yumiko to run 5 mi. SHOW YOUR WORK! HINT: Use the trend line equation from Item 15.