Functions (general)

Which of the following scenarios would best represent the graph shown?

• 
• 
• 
• 

The graph of the function $y\ =\ f\left(x\right)$ below shows the temperature y outside at different times x over a 24-hour period.   Which variable represents the domain?

• Temperature

• Time

• Variable

• Outside

Which of the following situations

corresponds to this graph?

• A car, accelerates from a stop,travels at a constant speed, slows,

  and then travels at a slower speed.

• An airplane travels at a constant

  speed then decelerates to a slower speed.

• An athlete warms up by walking

  around the track, runs, then jogs.

• A bicyclist accelerates, travels at a

  constant speed, then slows to a

  stop.

Which of the following scenarios would best represent the graph shown?

• 
• 
• 
• 

When is the velocity decreasing?

• 0 < t < 60
• 40 < t < 60
• 15 < t < 40
• -40 < t < 0

Choose the best situation for the graph.

• A car is moving at a constant speed for several minutes. When it approaches a red light, it slows down and comes to a stop.
• A plant grows steadily and then has a growth spurt during the rainy season. It remains the same height for a while and then grows steadily again.
• A family buys a fish tank and some fish. After two weeks, they buy some more fish. After two more weeks, they buy even more fish.
•  A monkey swings from a high branch to a lower branch. He climbs along the branch. Then he jumps to a higher branch and takes a nap.

Mickey is traveling at a constant speed on his bicycle. The graph shows how d, the total distance traveled, depends on t, the time in hours.

What can be concluded from the information on the graph?

• Mickey is riding at a speed of 11 miles per hour.

• Mickey rode a total of 12 miles.

• Mickey rode a total of 11 miles.

• Mickey is riding at a speed of 12 miles per hour.

An aquarium is being filled with water. The graph shows the height of the water over time as the aquarium is being filled. Which statement best describes the rate of change for this situation?

• The height of the water increases 20 inches per second.

• The height of the water increases 1 inch per second.

• The height of the water increases 5 inches per second.

• The height of the water increases 2.5 inches per second.

Tags

TEKS 8.4B

What is happening in this graph from point A to B? HINT: Look at the axis labels.

• The object is accelerating.

• The object is not moving.

• The object is decelerating.

• The object is moving at a constant speed.

The graph shows the total distance, in feet, walked by a person as a function of time, in seconds. Was the person walking faster between 20 - 40 seconds or 80 - 100 seconds?

• 20 - 40 seconds

• 80 - 100 seconds

• neither

• they're equal