SAT - Math -Scatterplots

The given scatterplot shows house prices per square foot. If f represents the number of square feet and p represents the house price in dollars, which of the following equations could be the line of best fit?

• p = 0.16f

• p = 0.16f + 160

• p = 160f

• p = 160f + 160

Answer explanation

Note that (0, 1000) is not the y - intercept!!

Tags

CCSS.HSA.CED.A.2

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

The given graph shows the exponential growth of the number of electric cars sold in even years from 2008 to 2018. Which of the following is the approximate number of electric cars sold, in millions, in 2015?

• 0.4

• 0.8

• 1.2

• 1.8

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.3

The given scatterplot shows the height of a diver above the water. Which of the following equations best describes the data in the scatterplot?

• 
• 
• 
• 

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

CCSS.HSF.IF.B.4

The given scatterplot shows the net revenue in millions of dollars for Company A and Company B from 2010 to 2018. Which of the following statements is true?

• Every 2 years from 2010 to 2018, the net revenue of Company A increases by 150 million dollars.

• The net revenue of Company B is greater than the net revenue of Company A for the even years from 2010 to 2014 inclusive.

• In the interval from 2014 to 2018, the rate of change of Company A’s net revenue is of greater magnitude than the rate of change of Company B’s net revenue.

• In the interval from 2014 to 2018, the rate of change of Company B’s net revenue is of greater magnitude than the rate of change of Company A’s net revenue.

Tags

CCSS.HSS.ID.A.1

CCSS.HSS.ID.B.6

The given scatterplot shows the sales price in dollars of cars sold in the past month at a used car lot as a function of the number of miles on the car. A linear model, represented by the line of best fit, y = −0.197x + 29,995, is used to predict a car’s sales price. By how much did the model overpredict the sales price of the car that was sold for $10,000? (Ignore the dollar sign when gridding in your answer.)

Tags

CCSS.HSA.SSE.A.1

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSS.ID.C.7

The given graph shows the global solar energy capacity in gigawatts from 2005 to 2015. The equation for the line of best fit is y = 23.682x − 47,522. Which of the following statements correctly compares the value predicted by the equation and the actual global solar energy capacity value in the scatterplot?

• The value predicted by the equation is less than the actual global solar energy capacity value in 2006.

• The value predicted by the equation is less than the actual global solar energy capacity value in 2010.

• The value predicted by the equation is less than the actual global solar energy capacity value in 2012.

• The value predicted by the equation is greater than the actual global solar energy capacity value in 2015.

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSA.SSE.A.1

CCSS.HSS.ID.C.7

During which interval is the average rate of change for global solar energy capacity the greatest?

• 2005–2009

• 2010–2012

• 2013–2014

• 2014–2015

Answer explanation

Observe how many blocks apart the dots are in the graph.

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.B.6