Linear and Quadratic curve of best fit practice

Which scatter plot shows a linear relationship between x and y?

• Graph A
• Graph B
• Graph C
• Graph D

Tags

CCSS.8.F.A.3

Which function is quadratic?

• f(x)

• h(x)

• g(x)

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

CCSS.HSA.REI.D.10

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters
• 15 chapters
• 18 chapters
• 21 chapters

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

About how many male math teachers were there in 2006?

• 15
• 30
• 35
• 45

Tags

CCSS.HSF.IF.B.4

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the trend line to predict how many pages would be in a book with 19 chapters. 

• 150 pages
• 170 pages
• 190 pages
• 210 pages

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

CCSS.HSF.IF.B.4

Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam? 

• 65
• 92
• 70
• 76

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

Caroline weighs her new puppy every month to see how much it has grown. If age is a and weight is W, which of these is the correct equation for the line of best fit?

• W = 3.6 + 8.9

• W = 3.6a + 8.9

• a = 8.9W + 3.6

• W = 8.9a + 3.6

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

David is training for a race and records his fastest time after each week of training. Let t be the weeks David has trained and S be his sprint time. Using a quadratic curve of best fit, which equation best represents the data?

• S = 0.05t² - 0.66t +32.35

• S = 0.05t² - 0.66t +32.35

• S = -0.31t² + 32.06

• S = -0.31t² + 32.06

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.SSE.A.1

Caroline weighs her new puppy every month to see how much it has grown. Use a line of best fit to predict how much her puppy will weigh after 12 months?

• 13 pounds

• 52 pounds

• 54 pounds

• 110 pounds

Tags

CCSS.HSF-LE.A.1B

The table shows how much money Jon has in his bank account each year. Use a line of best fit to estimate how much was in his account 18 years after he opened it.

• -$2,560

• $1,315

• $1,608

• $2,723

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6