Vocabulary Worksheet

Consider the exponential function graphed on the coordinate plane. Based on the graph, which inequality represents the most appropriate domain of the exponential function?

• x ≤ -2

• x ≥ -2

• x ≤ 4

• x ≥ 4

The graph represents a model of the population of rabbits over a 3-month period, in weeks. Which units best represent the rate of change in the graph?

• months/rabbit

• rabbits/month

• rabbits/week

• weeks/rabbit

A baseball player learns to hit baseballs after being thrown such that the baseballs go beyond the boundaries of the baseball field, resulting in a home run. Which is least likely to affect the baseball player’s ability to hit a home run?

• the force of the baseball bat hitting the ball

• the number of seats in the baseball stadium

• the speed of the baseball after being thrown

• the speed of the baseball after being hit

A mechanic charges customers a base fee in addition to an hourly rate to repair cars. The base fee and hourly rate differ depending on the type of car repair needed. The table shows the different repair types and costs.

Which function represents the total cost, E(h), in dollars, the mechanic charges for an engine check that takes h hours to complete?

• E(h) = 5h + 15

• E(h) = 10h

• E(h) = 15h + 5

• E(h) = 20h

A student volunteers to complete 𝟏𝟐𝟎 hours of community service at a local hospital.

• The student completes 𝟓𝟎 hours of community service over summer break.

• The function 𝒗(𝒙) = 𝟏𝟐𝟎 − (𝟏𝟎𝒙 + 𝟓𝟎) represents the number of community service hours the student has left to complete after 𝒙 months since the beginning of the school year, where 𝒙 ≤ 𝟕.

What is the value of v(3)?

• A. 40

• B. 60

• C. 80

• D. 90

Consider the graph of the linear equation. Which statement is true?

• A. The point (-8, -10) is a solution to the linear equation.

• B. The point (-3, 0) is a solution to the linear equation.

• C. The point (0, 6) is a solution to the linear equation.

• D. The point (8, 1) is a solution to the linear equation.

A vintage car costs $𝟑𝟐, 𝟎𝟎𝟎 when purchased. The car increases in value by approximately 𝟕% at the end of each year, 𝒙, after it is purchased. Which inequality can be used to find the years the car is worth more than $𝟕𝟓, 𝟎𝟎𝟎?

• 32,000(0.07)^𝑥 < 75,000

• 32,000(0.07)^𝑥 > 75,000

• 32,000(1.07)^𝑥 < 75,000

• 32,000(1.07)^𝑥 > 75,000