Evaluate Functions
Interpret Function Notation
Key Features of functions
Average Rate of Change
Write the function
100
If h(t)=t + 1, find h(7)
What is 8?
100
The function B(x) = 8x + 25 represents the cost (in dollars) of renting a bicycle for x days.
Explain the meaning of B(13)=129
What is The cost of renting the bicycle for 13 days is $129.
100
What is the y-intercept of the graph?
What is (0,-2)?
100
What is the slope of the ordered pairs (4,-5), (2,7)?
What is -6?
100
The function f(x) represents the service charge of a limo for x, hours of service. If the limo service charges $90 an hour with no deposit, identify the independent and dependent variable.
Independent Variable=Hours of service
Dependent Variable = service charge
200
If f(x)=2x+6, find f(h)=4
What is -1?
200
A babysitter's salary can be represented by a function, S, where the input is the hours worked.
What does S(7) represent?
What is The salary of a babysitter who worked 7 hours.
200
Describe the graph on the interval from f to g
What is increasing and negative?
200
What is the average rate of change over the interval?
What is -3?
200
A line has a slope of 1/3 and goes through the point (0,6). What is the linear equation that represents this line?
What is
y=1/3x+6
?
300
How many hours does Kazyriah have to work to earn $100?
What is 5?
300
Joey's family just got a new printer. The function f(x) gives the number of pages it can print in x seconds.
What does f(60)=30 tell you?
What is The print can print 30 pages in 60 seconds?
300
What is the vertex?
What is (2,-2)?
300
The height of a plant is recorded over a period of time. What is the change in height per day based in the context of this table?
What is it grew 2 mm every day?
300
Write an exponential function for this table.
What is y=3(4)x?
400
Find the value of f(-9)
What is 3?
400
Mrs. Carey is putting a tile backsplash on the wall behind her stove. The function f(x) gives how many boxes of tiles she would need if she used square tiles that are x inches per side.
What does f(4)<f(2) tell you?
Mrs. Carey would need fewer boxes of tiles if she used 4-inch tiles than if she used 2-inch tiles.
400
Jayda makes a graph to show the weight of a jar when it contains different numbers of marbles.
What does the y-intercept represent?
What is The weight of the jar by itself ?
400
What is the average rate of change over the interval 3 < x < 5 ?
What is 3?
400
What is the linear equation for a line that runs through the points (0, -1) and (9, 5)?
What is
y=-3/2x-1
?
500
f(x)=96(0.5)x
g(x)=15x+8
What is the value of f(5)+g(2)?
What is 41?
500
A flight takes off from San Diego. The altitude of the flight x minutes after takeoff is given by the function f(x). The altitude is measured in thousands of feet.
What does f(150) = 29 tell you?
What is The flight's altitude is 29,000 feet 150 minutes after takeoff.
500
A radioactive sample decays according to the function in the table below:
The sample decays exponentially over the 5 year interval.
What is the initial amount of the sample?
What is 1200?
500
What is the rate of change of f(x)=2x2 - 3x + 5 over the interval 2 < x < 5 ?
What is 11?
500
Write an exponential function to model the situation. A population of 422,000 decreases by 12% each year.
What is f(x) = 422,000(0.88)x?