Lesson 3-5 & 3-6 Quiz

Which term best describes the graph of y = x – 1?

(Consider the slope of this line.)

• increasing

• decreasing

• constant

• positive

Which term best describes the graph of y = –2?

• increasing

• decreasing

• constant

• positive

The graph shows the height of a tennis ball launched into the air as time (in seconds) increases.On what interval(s) is the graph increasing and/or decreasing?

• The height of the ball is decreasing on interval a, and increasing on interval b.

• The height of the ball is decreasing on interval a, and decreasing on interval b.

• The height of the ball is increasing on interval a, and increasing on interval b.

• The height of the ball is increasing on interval a, and decreasing on interval b.

Kai traveled home and made several stops and detours along the way, as shown by the graph. Which of the following describes behaviors from the graph that are INCORRECT?

• The graph of the function is CONSTANT at intervals b and d.

• The graph of the function is DECREASING at intervals a and f.

• The graph of the function is INCREASING at intervals c and f.

• The graph of the function is INCREASING at intervals c and e.

The graph shows how a motorboat travels around a lake. What does the graph most likely show?

• The boat travels at a constant speed for 10 minutes and then stops.

• The boat travels at a constant speed for 10 minutes and then slows down.

• The boat steadily increases its speed for 10 minutes and then stops.

• The boat steadily increases its speed for 10 minutes and then travels at a constant speed.

The value of a stock decreases sharply for 2 weeks, then increases sharply for 1 week,and then decreases sharply again for 2 weeks.Which graph shows the relationship between the value of the stock and time?

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Mr. Ritch attaches a full tank of propane to his grill. Then he turns on the grill and cooks food for a barbecue. Which graph shows the relationship between the amount of propane in the tank and time?

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Ally hikes slowly away from her campsite for 30 minutes. Then she rests for 10 minutes. Finally she hikes back to her campsite at a faster pace, reaching it in 20 minutes.Which graph could represent Ally’s distance from the campsite and time?

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A basketball player throws a ball upward from her hands, which are 5 feet above the ground.The basketball reaches a maximum height and then descends a few feet and becomes stuck in the net. Which graph could represent the relationship between the height of the ball and time?

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