ACT Warm-up/8-5 Extra Practice

Justin owns 6 different dress shirts, 3 different pairs of pants, and 5 different ties. How many distinct outfits, each consisting of a shirt, a pair of pants, and a tie can Justin make?

• 14

• 42

• 90

• 120

• 144

Write an exponential function in the form y=ab^x that goes through points (0, 13) and (2, 325).

• y=13(5)^x

• y=13(2)^x

• y=5(13)^x

• y=2(5)^x

Tags

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.2

Write an exponential function in the form y=ab^x that goes through points (0,13) and (5, 416).

• y=13(32)^x

• y=13(2)^x

• y=13(5)^x

• y=2(13)^x

Tags

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

Write an exponential function in the form y=ab^x that goes through points (0, 15) and (2, 240).

• y=2(15)^x

• y=2(4)^x

• y=4(15)^x

• y=15(4)^x

Tags

CCSS.HSA.CED.A.2

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.2

John set a goal to start running once a week. On week one he ran 2 miles. By week ten he ran 6 miles. If the amount he runs each week is increasing exponentially, which of the following can be used to model the situation?

Jane bought an RV for $22,000 in 2001. By 2008 the RV was worth $18,000. If the value of the RV is decreasing exponentially, which of the following equations represent the situation.

The number of bacteria in a specific science experiment is increasing exponentially. There were 800 bacteria present when the experiment started. After 24 hours there were 1375 bacteria present. Which of the following equations can be used to model the situation?