Algebra Unit A Topic Quiz

Quadratic equations take the shape of a _______ when graphed.

• parabola

• straight line

• snaked line

• elliptical

Tags

CCSS.HSF-IF.C.7A

This is a _______________ function.

• Linear

• Exponential

• Quadratic

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.LE.A.1

This is a _______________ function.

• Linear

• Exponential

• Quadratic

Tags

CCSS.HSF.IF.B.4

CCSS.HSA.CED.A.1

CCSS.HSF.IF.C.7

Assume that a bacteria population doubles every hour. Which of the following three tables of data, with 𝑥 representing time in hours and 𝑦 the count of bacteria, could represent the bacteria population with respect to time?

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• 
• 

Saya and Carl live at opposite ends of the hallway in their apartment building. Their doors are 50 ft. apart. Each person starts at his or her own door and walks at a steady pace toward the other. They stop walking when they meet. Suppose that Saya walks at a constant rate of 3 ft. every second and Carl walks at a constant rate of 4 ft. every second. Approximately how many seconds will it be when they meet? Draw a graph if you need a visual.

• 4 to 5 seconds

• 6 to 7 seconds

• 7 to 8 seconds

• 8 to 9 seconds

Suppose the researchers collecting data for water consumption during a typical school day collected data through the night too.

For the period between the time the last person leaves the building for the evening and the time of the arrival of the first person the next morning, how should the graph of water consumption appear?

(a)  

Suppose the researchers see instead, from the time 2:21 a.m. onward, the graph shows a horizontal line of c=a constant value.   What might have happened during the night?

This graph represents Billy’s distance from his bicycle as he walks in a park. How many seconds does it take him to return to his bike?

(a)  

This graph represents Billy’s distance from his bicycle as he walks in a park. From 11 to 14.5 seconds, he is at a constant distance from his bike. What could be the reason?

The graph represents the temperature in degrees Fahrenheit as a function of time. Tell the story of the temperature throughout the day.