Mathematics and Investment Functions Quiz

The current population of a city is 20,000. The city council estimates the growth rate of the population of the city at 18% per year. Which function can be used to estimate the population of the city after 10 years?

• P(10) = 20,000(1.18)10

• f(x) = 3(x + 1)(x + 3)

• f(x) = 3(x - 1)(x + 3)

• f(x) = 3(x - 1)(x - 3)

• f(x) = 3(x + 1)(x - 3)

• Olivia invests $1,000 in a mutual fund, yielding 1.03% per year. What is the value of her investment after 3 years?

• Olivia invests $1,000 in a mutual fund, yielding 1.05% per year. What is the value of her investment after 3 years?

• Olivia invests $1,000 in a mutual fund, yielding 3% per year. What is the value of her investment after 5 years?

• Olivia invests $1,000 in a mutual fund, yielding 5% per year. What is the value of her investment after 3 years?

• 4 meters

• 6 meters

• 16 meters

• 36 meters

Which function represents the return on $210 invested in a mutual fund yielding 9% per year for 8 years?

• f(x)=-2(x+2)^2+4

• f(x)=-2(x-2)^2-4

• f(x)=-2(x+1)^2+1

• f(x)=-2(x-1)^2-1

• f(x)=2(x-2)^2+2

• f(x)=2(x-2)^2-2

• f(x)=2(x+2)^2+2

• The population of fish increases by 6% each month.

• The population of fish decreases by 6% each month.

• The population of fish increases by 94% each month.

• The population of fish decreases by 94% each month.

Consider the graph of function $ p $. Graph of function $ p $ with x-axis from -5 to 5 and y-axis from -5 to 5.

• The number of y-intercepts of $ p $ in the interval $[-2, 1]$ is zero while that in the interval $[1, 5]$ is two.

• The number of y-intercepts of $ p $ in the interval $[-2, 1]$ is zero while that in the interval $[1, 5]$ is one.

• The number of y-intercepts of $ p $ in the interval $[-2, 1]$ is two while that in the interval $[1, 5]$ is zero.

• The number of y-intercepts of $ p $ in the interval $[-2, 1]$ is one while that in the interval $[1, 5]$ is zero.