Interpret Graphs

Interpret graphs 1

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​Linear functions

​Quadratic functions

​Exponential functions

​1) What does the graph describe?

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​2) What is the initial value of the washing machine?

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​3) What is the value of the washing machine after 2 years?

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​4) How much does the washing machine's value decrease every year?

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​5) When is the machine worth $150?

​Linear functions discussion:

Multiple Choice

How much does the empty jar weigh?

• 10 grams

• 160 grams

• 70 grams

• 0 grams

Multiple Choice

If the jar weighs 70 grams, how many marbles are in the jar?

• 70

• 100

• 30

• 20

Multiple Choice

What is the weight of the jar with 10 marbles?

• 10 grams

• 40 grams

• 0 grams

• 140 grams

Multiple Choice

Which function represents this line?

• W(m) = 3m + 140

• W(m) = -3m + 10

• W(m) = 3m + 10

• W(m) = 10m + 3

​Quadratic functions discussion:

​1) What is the y-intercept? What does it mean for the problem?

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​2) Approximately what is the maximum height of the ball?

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​3) How many seconds is the ball in the air?

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​4) When does the ball reach a height of 40 feet?

Multiple Choice

What is the initial height of the snowball?

• 163

• 5.2

• 0

• 100

Multiple Choice

How long is the snowball in the air?

• 8 seconds

• 3 seconds

• 260 seconds

• 10 seconds

Multiple Choice

How long does it take the snowball to reach its maximum height?

• 0 seconds

• 2 seonds

• 4 seconds

• 8 seconds

• 8

Multiple Choice

What is H(3)?

• 100 feet

• 150 feet

• 240 feet

• 255 feet

​Exponential functions discussion:

​1) What was the initial population?

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​2) Approximately, when did the population reach 2 billion people?

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​3) What was the population in 1950?

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​4) Does this represent growth or decay?

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​5) How much did the population grow between 1800 and 2000?

Multiple Choice

Does this represent growth or decay?

• growth

• decay

Multiple Choice

Approximately what was the purchase price of the car?

• $10,000

• $35,000

• $22,000

• $31,000

Multiple Choice

When did the car's value reach $10,000?

• after 3 years

• after 5 years

• after 7 years

• after 10 years

Multiple Choice

What is V(3)? 

• $20,000

• $25,000

• $35,000

• $7,000

Multiple Choice

What does V(8) = $8,500 mean?

• After 8500 years, the car is worth $8

• After 8 years, the car is worth $8500

• The car is worth $8,500 when purchased

• The car is worth $8,500 when sold.