FA #6 Choosing Appropriate Function Models

• Linear

• Quadratic

• Exponential

• Linear

• Quadratic

• Exponential

• Linear

• Quadratic

• Exponential

• Linear

• Quadratic

• Exponential

• She will have to spend $180 on supplies.

• She will make a total of 180 tee-shirts.

• She will earn $180 after selling all of her tee-shirts.

• She needs to sell 180 tee-shirts to break even.

Which correctly describes one of the parameters of this function?

• The investor purchased 1.1 ounces of gold.

• The investor’s gold ounce increases by $212 each year.

• The gold doubles in value every 1.1 years.

• The initial value of the gold was $212.

Which correctly describes one of the parameters of this function?

• The ball was in the air for a total of 2 seconds.

• The ball had a maximum height of 55 feet.

• The ball was in the air a total of 16 seconds

• The ball landed 55 feet away from the kicker.

Which retirement option would be worth more at the end of 20 years?

• Option #1

• Option #2

• They are both equal at 20 years.

Which function below as a domain of all real numbers?

• $f\left(x\right)=2x+1$

• $f\left(x\right)=3^x+2$

• $f\left(x\right)=x^2+1$

• All of the functions listed have a domain of all real numbers.

Which is the only function below that can have a range of $y>2$   

•  $f\left(x\right)=x^2+2$  

•  $f\left(x\right)=3^x+2$  

•  $f\left(x\right)=2^x+3$  

•  $f\left(x\right)=\left(x+2\right)^2$