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Biblioteka

IM: 8.5.4: Tables, Equations, and Graphs of Functions (Lesson)

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Posljednje ažuriranje over 1 year ago
17
4.1: Notice and Wonder: Doubling Back
1
Pitanje 1
1.

What do you notice? What do you wonder?

4.2: Equations and Graphs of Functions

Are you ready for more?

4.3: Running around a Track

The graphs of three functions are shown.

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Pitanje 2
2.

Match one of these equations to each of the graphs.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

q=50-0.4d, where q is the number of quarters, and d is the number of dimes, in a pile of coins worth $12.50.

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A=\pi r^2, where A is the area in square centimeters of a circle with radius r centimeters.

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d=60t, where d is the distance in miles that you would travel in t hours if you drove at 60 miles per hour.

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1
Pitanje 3
3.

Label each of the axes with the independent and dependent variables and the quantities they represent.

1
1

A function inputs fractions a/b between 0 and 1 where a and b have no common factors, and outputs the fraction 1/b. For example, given the input 3/4 the function outputs 1/4, and to the input 1/2 the function outputs 1/2. These two input-output pairs are shown on the graph.

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Pitanje 6
6.

Plot at least 10 more points on the graph of this function.

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Pitanje 7
7.

Are most points on the graph above or below a height of 0.3? Of height 0.01?

Kiran was running around the track. The graph shows the time, t, he took to run various distances, d. The table shows his time in seconds after every three meters.

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Pitanje 8
8.

How long did it take Kiran to run 6 meters?

1
Pitanje 9
9.

How far had he gone after 6 seconds?

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Pitanje 10
10.

Estimate when he had run 19.5 meters.

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Pitanje 11
11.

Estimate how far he ran in 4 seconds.

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Pitanje 12
12.

Is Kiran's time a function of the distance he has run? Explain how you know.

Priya is running once around the track. The graph shows her time given how far she is from her starting point.

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Pitanje 13
13.

What was her farthest distance from her starting point?

1
Pitanje 14
14.

Estimate how long it took her to run around the track.

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Pitanje 15
15.

Estimate when she was 100 meters from her starting point.

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Pitanje 16
16.

Estimate how far she was from the starting line after 60 seconds.

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Pitanje 17
17.

Is Priya's time a function of her distance from her starting point? Explain how you know.

Pitanje 4
4.

For each function:  What is the output when the input is 1? What does this tell you about the situation? Label the corresponding point on the graph.

Pitanje 5
5.

Find two more input-output pairs. What do they tell you about the situation? Label the corresponding points on the graph.