Linear and Exponential Regression

Find the exponential model of the function.

• y = 100(8.8)^x
• y = 100(1.88)^x
• y = 100(.88)^x
• y = 100(.12)^x

Tags

CCSS.HSF.LE.A.2

A chemist has a 100-gram sample of a radioactive material.  He records the amount of radioactive material every week for 6 weeks and obtains the following data: How much is left after 12 weeks?

• 15
• 21
• 17
• 19

Tags

CCSS.HSF.BF.A.2

Write the exponential regression equation for this data.

• Y = 8.16(2.7)^X
• Y = 81.6(2.7)^X
• Y = 8.16(.27)^X
• Y = 8.16(27)^X

Tags

CCSS.HSF.LE.A.2

Write the exponential regression equation for this data.

• Y = 8.16(2.7)^X
• Y = 81.6(2.7)^X
• Y = 8.16(.27)^X
• Y = 8.16(27)^X

Tags

CCSS.HSF.LE.A.2

Predict the year when Sugar Land’s population will reach 75,000.

• 2015
• 1991
• 1992
• 2010

Tags

CCSS.HSF.LE.A.2

After 9 days, approximately how many grams of this substance will exist?

• about 60,000
• about 80,000
• about 90,000
• about 100,000

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.A.1

CCSS.HSF.BF.A.1

CCSS.HSF.BF.A.2

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

Describe the association of the scatter plot

• Linear
• Linear; negative association
• Exponential; Growth
• Exponential; Decay

Tags

CCSS.8.EE.B.5

Use the exponential regression to find an equation that fits the​ data, where x is the years since 1990.

• y=8.92•1.23^x
• y=1.23•8.92^x
• y=8.92+1.23x
• y=8.92x+1.23

Tags

CCSS.HSF.LE.A.2

Please round your decimals to the nearest hundredth in your exponential regression!!!!!! What is the estimated number of cell phone subscribers in 2018?

• 2936 millions
• 847 millions
• 4441 millions
• 370 millions

Tags

CCSS.HSF.LE.A.2

In an exponential function, what does the 'a' represent? 

• SLOPE
• RATE OF CHANGE
• Y-INTERCEPT
• COMMON RATIO

Tags

CCSS.HSF.LE.B.5