Howell Unit 3 QUIZ

A runner competes in six races of the same distance. The results are shown in the table.

Which equation models the line of best fit for the data?

• y=-2.61x+82.8

• y=-0.35x+31.6

• y=-2.61x+31.6

• y=-0.35x=82.8

The table shows the percentage of people in the United States who own a cell phone.

Which equation models the line of best fit for the data?

• y=0.3x+53

• y=3x-17

• y=0.3x-17

• y=3x+53

The table shows the relationship between the search engine rating and stock price for an online company.

Part A

Which words describe the correlation?

• strong and postitive

• weak and postitive

• strong and negative

• weak and negative

Tags

CCSS.HSF-LE.A.1B

The table shows the relationship between the search engine rating and stock price for an online company.

Part B

To the nearest hundredth, what is the correlation coefficient for the data?

Enter the correct answer in the box.

Tags

CCSS.HSF-LE.A.1B

Researchers found a relationship between the number of days after May 1st1st that farmers planted their crops and the yield per acre in bushels. The data are shown in the table.

Part A

Which equation models the line of best fit for the data?

• y=-5.5x+95

• y=-.55x+94

• y=-1.78X+167

• y=-17.8x=168

Which explicit rule represents the sequence in the table

• f(n)=31+3(n) for n>0

• f(n)=31-3(n) for n>0

• f(n)=31+3(n-1) for n>0

• f(n)=31-3(n-1) for n>0

Tags

CCSS.HSF.BF.A.2

What is the recursive rule for the sequence 54,57,60,63,66, ...?

• f(1)=54 , f(n)=f(n-1)+3

• f(1)=54 , f(n)=f(n-1)+4

• f(1)=54 , f(n)=f(n-1)+5

• f(1)=54 , f(n)=f(n-1)+6

Tags

CCSS.HSF.IF.A.3

Daniel has math homework to complete over a 5-day period. He plans to complete the same number of questions each day until he is finished. The table shows the sequence of days, 𝑑, and number of questions, 𝑞(𝑑).

Part A

What is the recursive rule for the arithmetic sequence given in the table?

• q(1)=5 , q(d)=q(d-1)-4

• q(1)=5 , q(d)=q(d-1)+4

• q(1)=16 , q(d)=q(d-1)-4

• q(1)=16 , q(d)=q(d-1)+4

Tags

CCSS.HSF.BF.A.2

Use the Point Tool to graph the arithmetic sequence for the 5−day period, where 𝑑=𝑥 and 𝑞(𝑑)=𝑦

The table shows the values of the first five terms of the arithmetic sequence 𝑓(𝑛).

What is the common difference of the sequence?

Enter the correct answer in the box.

Tags

CCSS.HSF.BF.A.2