Review Quiz - Lesson 1.1-1.6

Let s(t) represent the speed of a car in miles per hour, t hours after starting a trip. Interpret the statement s(2.5)=55 in the context of this problem.

• The statement means that 2.5 hours after starting the trip, the car is traveling at a speed of 55 miles per hour.

• The statement means that 55 hours after starting the trip, the car is traveling at a speed of 2.5 miles per hour.

• The car is travelling to a trip

• The distance travelled by the car is 55 miles

• The domain is all real numbers

• The domain is (-∞, 11]

• The domain is [ 11, ∞)

• The domain is ( 11, ∞)

• The range is all real numbers

• The range is (-∞, 11]

• The range is [ 0, ∞)

• The range is [3, ∞)

• The function is undefined when x = -13

• y = 1, when x = 13

• The range is [ 0, ∞)

• The domain is [3, ∞)

• The range is all real numbers

• The graph is shifted 3 units to the right

• The graph is shifted 3 units to the left

• No horizontal shift

• The graph is reflected over the x-axis

• The graph is reflected over the y-axis

• It is an even function

• It is an odd function

• Neither odd nor even function

• 200

• 2000

• 500

• 4000

A company that produces strawberry, grape, and raspberry jam tracked the costs to make each type of jam each year. The cost to make a container of each type of jam increases, including supply costs. The costs, in dollars, to make a container of the strawberry jam and the grape jam are represented by the functions shown, where x represents the number of years since the company opened.

Strawberry Jam: s(x) = 3.10 + 0.05x

Grape Jam: g(x) = 0.01(x - 1)² + 2.95

What statement is true about the cost to make a container of the strawberry jam?

• The cost to make a container of the strawberry jam was $3.10 in the year the company opened, and the cost increased $0.05 each year.

• The cost to make a container of the strawberry jam was $3.10 in the year the company opened, and the cost increased 5 percent each year.

What do you call the point where a function crosses the x-axis?

• y-intercept

• root

• minimum

• maximum

Which of the following statements are true about the function g(x)?  Select all that apply.

• The slope of the graph is -2.

• The function g(x) is an exponential function.

• When x increases by1, g(x) decreases by a factor of -2.

• The function can be represented by the equation g(x) = -2x.

• The function can be represented by the equation g(x) = -2x + 5.