APPC 4.5-4.8 Review

In 2015, there were approximately 3200 tigers worldwide. What is the approximate number of tigers in 2022 if the population increased by 40% over 7 years?

• 4480

• 3200

• 3840

• 5120

What is the equation for function f?

• f(x)=11(2.779)^x-2

• f(x)=85(2.779)^x

• f(x)=11(2.779)^x

• f(x)=2(7.727)^x-1

Tags

CCSS.HSF.LE.A.2

What type of mathematical model is suggested for the function in the graph?

• Linear

• Exponential

• Quadratic

• Logarithmic

The minimum wage in New York has increased exponentially. In 1981 it was $3.35 and in 2016 it was $9.00

Predict the minimum wage in New York in 2022.

• $9.53

• $11.45

• $12.50

• D. $10.66

A family of six mice can multiply into a family of 60 mice in a mere three months. Write an equation for f(x), the number of mice in the family after x months where f(0) = 6.

• f(x)=6(10)^x/3

• f(x)=f(10)^x

• f(x)=60(10)^x/3

• f(x)=6(10)^3x

Tags

CCSS.HSF.LE.A.2

The graph of y=g(x) is shown. What is its equation?

• g(x)=27(1/3)^x

• g(x)=1(9)^2x

• g(x)= -1(9)^2

• g(x)= -27(1/3)^x

Tags

CCSS.HSF.LE.A.2

A patient receives a medication through an IV when arriving at the hospital. The amount of the medication in the patient, in milligrams, after t hours can be modeled by the function shown. How many milligrams of the medication are in the patient after 2 hours? Round to the nearest thousandth.

• 8.857 mg

• 9.857 mg

• 5.839 mg

• 11.857 mg

Which equations represent f? Choose all that apply.

• III, IV, V

• III, IV, VI, VII

• I, II, III

• I, III, IV, VII

Tags

CCSS.HSF.LE.A.2

Katarina works at an ice cream shop. She notices that on days when the temperature is higher, the store sells more ice cream. She tracks this data over the summer and notices a linear pattern that can be modeled by the least squares regression line y = −183.97 + 31.82x, where y is the daily predicted sales when the temperature is x˚ Celsius. On one day when the temperature is 27˚C, the total ice cream sales are $720. Calculate the residual for this day.

• -44.83

• -215.79

• 215.79

• 44.83

A group of high school students started studying the number of Twitter followers of their favorite pop star. A linear regression was used to develop a model for the number of followers in the years since 2010. The figure shows a graph of the residuals. Is a linear model appropriate for the data?

• Yes

• No