PLSS HELP GIVING 100 POINTS! ITS KINDA LONG BUT IT WOULD MEAN THE WORLD TO ME IF U HELP WITH ALL THE QUESTIONS

Graded Assignment
Unit Test, Part 2: Linear Models
Answer the questions below. When you are finished, submit this assignment to your teacher by the due date for full credit.
Please make certain to show your work as part of your grade is associated with showing the steps to complete a problem. You want to set things up so that someone else can see the process you used to arrive at your answer.
Total score: of 15 points
(Score for Question 1: ___ of 6 points)
1. A poll asked 15 pet owners what kind of pet they have and whether they feed their pet kibble or meat. The results are recorded in the table.

Person Pet Food
1 Cat Kibble
2 Cat Kibble
3 Dog Kibble
4 Cat Meat
5 Dog Meat
6 Dog Kibble
7 Dog Meat
8 Dog Meat
9 Catr Meat
10 Cat Meat
11 Dog Meat
12 Cat Kibble
13 Dog Meat
14 Cat Kibble
15 Dog Meat
(a) Create a two-way table of the data. Of the pet owners surveyed, how many owned dogs? How many fed their pets meat?
a. Please include labels and totals.
(b) Create a two-way relative frequency table that displays the relative frequency of the cat owners and dog owners who fed their pets kibble or meat. Express your answers as decimals written to three decimal places.
(c) What is the percentage of dog owners who fed their pets meat?

Part A, How many owned dogs?

Part A, How many fed their pets meat?

Part C

Two way table, Part A
Kibble Meat Total
Cat

Dog

Total

Relative frequency table, Part B
Kibble Meat Total
Cat

Dog

Total

Note: these tables are asking for two different things. Please review 1.02, and come into Math Help Lab, if you’re unsure what the difference is or otherwise need assistance.

(Score for Question 2: ___ of 5 points)
2. Consider this scatter plot.
Test Scores in Relation to Homework

Hours of Homework
(a) Is the relationship linear or not linear? Justify your response.
(b) Is the relationship increasing or decreasing? Find the slope and use it to help justify your answer.
(c) Paul uses the function y = 7x + 30 to model the situation. What score does Paul’s model predict for 3 hours of homework? Hint: It’s _not_ asking you to use the graph.
(d) Describe what the number 30 in Part (c) mean in the context of the situation? Hint: Think about what kind of function equation you have in Part C.

Part A)

Part B)

Part C)

Part D

(Score for Question 3: ___ of 4 points)
3. Anika is on the crew to set up rides for the state fair. The crew does most of the setup on the day that the fair arrives at the fairground and then continues to work on finishing the setup for about a week to have the rides ready to go in time for the opening of the fair. The scatter plot shows Anika's setup time on different days and the linear model for the data.
Annika’s Setup Time

Time (Days)
(a) What is the equation of the line, written in slope-intercept form? Show how you determined the equation.
(b) Anika arrived on Day 0. Based on the linear model you created in Part A, predict how long Anika worked on Day 0.
(c) Approximately how much did her setup time decrease per day?

[Answer boxes are on next page]

Part A, Find the slope & equation in Point Slope form)

Part A, convert to slope intercept form)

Part B)

Part C)