EOC BOOTCAMP Question Set 10 and 12

16. 16. Trent is reading a book that is 254 pages long. He read a few pages on day one. On day two, he read three times the number of pages than he read on day one. On the third day, he read twenty pages less than what he read on the first day. If Trent finished reading the book in these three days, we can use the equation x + 3x + (x – 20) = 254 to model this scenario. What part of this equation represents the number of pages Trent read on day 2?

• x

• 3x

• (x – 20)

• 254

• The speed of the ball is 70 feet per second.

• The maximum height of the ball is 70 feet above the ground.

• It takes 70 seconds for the ball to hit the ground.

• The ball will travel 70 feet from where Michele Smith throws it.

18. 18. Evaluate f(x) = √x + 2 when x = 16.

• 6

• 8

• 10

• 4

• -123

• -105

• -87

• -99

• 8

• 16

• 32

• 64

22. 22. The graph models the number of computers, y, infected by a virus after x hours. Find the average rate of change between 1 hour and 3 hours. Round to the nearest tenth, if necessary.

• 30 Computers/hour

• 15 Computers/hour

• 45 Computers/hour

• 60 Computers/hour

25. 25. Identify the effect on the table of values if the function modeled in the table was transformed into h(x) = f(x) + 3.

• The x-values will each increase by 3

• The y-values will each increase by 3

• The x-values and y-values will both increase by 3

• The y-values will each be multiplied by 3

26. 26. Identify the effect on the table of values if the function modeled in the table was transformed into h(x) = 3f(x).

• The x-values will each increase by 3

• The y-values will each increase by 3

• The x-values and y-values will both increase by 3

• The y-values will each be multiplied by 3

39. 39. A student collected selling prices and bid data from Ebay.com on the same model of calculator, and wrote a linear equation, shown below, where x = the number of bids and y = the selling price (in dollars). What is the interpretation of the slope and y-intercept? y = 0.32x + 60.38

• The selling price for a calculator increases by $60.38 for each additional bid. The y-intercept has no meaning in this context.

41. 41. A scatter plot of the U.S. national debt from 2001 to 2016, including a linear equation and its residuals modeling the data, is shown. Which statement correctly interprets the scatter plot?

• The scatter plot shows a weak positive correlation.

• The scatter plot shows a weak negative correlation.

• The scatter plot shows a strong positive correlation.

• The scatter plot shows a strong negative correlation.