Day 80 TEST Review 2-6

Which option correctly identifies the nth term of the geometric sequence 2, 3, 4.5, 6.75, ...?

• f(n) = 2(1.5)^(n-1)

• f(n) = 2(1.5)^n

• f(n) = 3(1.5)^(n-1)

• f(n) = 3(1.5)^n

Tags

CCSS.HSF.BF.A.2

Which pairs of functions are inverses of each other?

• f(x) = log(x-1) and g(x) = 10^x + 1

• f(x) = log(x+1) and g(x) = 10^x - 1

• f(x) = log(x-1) and g(x) = 10^x - 1

• f(x) = log(x+1) and g(x) = 10^x + 1

Tags

CCSS.HSF-BF.B.4B

What was the estimated zombie population in Katy, TX by 2021 if it started with 1000 zombies in 2018 and grew at an annual rate of 72%?

• 1000(0.28)^2021

• 1000(0.28)^3

• 1000(1.72)^2021

• 1000(1.72)^3

Tags

CCSS.HSF-LE.A.1C

What equation models the growth of Tyler's college savings fund which started with $1000 and grew at a rate of 9% compounded quarterly?

• P = 1000(1 + 0.09/4)^4t

• P = 1000(1 + 0.09)^4t

• P = 1000(1 + 0.09/4)^t

• P = 1000(1 + 0.09)^t

Approximately how many years will it take for Tyler's initial investment of $1000 to double if it grows at a rate of 9% compounded quarterly?

• About 8 years

• About 9 years

• About 10 years

• About 11 years

Tags

CCSS.HSF.LE.A.4

What is the function that models the annual sales of a fast-food restaurant starting at $650,000 and increasing at a rate of 5% per year?

• f(n) = 650,000(1.05)^n

• f(n) = 650,000(0.05)^n

• f(n) = 650,000 + 0.05n

• f(n) = 650,000(1 + 0.05n)

Tags

CCSS.HSF.LE.A.2

Convert the logarithmic equation ln x = 5 to exponential form.

• A) x = e^5
• 5

• 10^5

• ln5

Tags

CCSS.HSF.BF.B.5

What is the inverse of the function f(x) = 3^x?

• A) f^(-1)(x) = log_3(x)

• B) f^(-1)(x) = x/3

• C) f^(-1)(x) = 3/x

• D) f^(-1)(x) = x^3

Tags

CCSS.HSF-BF.B.4A

What is the domain of the function f(x) = -2log(x - 4) + 2?

• A) x > 4

• B) x > 2

• C) x > -4

• D) All real numbers

What is the inverse function of f(x) = log_3 (x - 2) + 4?

• y = 3^(x-4) + 2

• y = 3^(x+4) - 2

• y = 3^(x+4) + 2

• y = 3^(x-4) - 2

Tags

CCSS.HSF-BF.B.4A