Interpreting Solutions to Functions

What is the y-intercept of the function?

• 2

• 3

• 1

• -2

Does this graph have a maximum or minimum value?

• maximum

• minimum

• neither

• both

What is the range of the graph?

• -2 < y < 10

• -3 < x < 3

• -2 ≤ y ≤ 10

• -3≤ x ≤ 3

What is the range of the function given below?

• 0 ≤ y ≤ 7

• -2 ≤ y ≤ 4

• .2 ≤ y ≤ 4

• All real numbers

Consider the function f(x)=9x+5.  Find f(7).

• 102

• 68

• 7

• 21

Jenny says that this mapping diagram DOES NOT represent a function because the inputs of -1, 1 and, 0 share an output of 0.

Explain why you agree or disagree with Jenny.

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Dorothy loves to make cakes. The following table shows how the number of eggs that she has left changes as she makes cakes.

Interpret the y- intercept in context

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Interpret the point (12, 100)

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The graph shows the height (cm) of a candle as it burns, what is the y intercept and what does the y-intercept mean?

• b=9, Candle starts at 9 cm.

• b=9, the candle burns 9 inches per hour.

• b=2, the candle burns 2 inches per hour.

• b = 5, The candle ends at 5 cm

After how many cakes will Dorothy run out of eggs?

How do you know?

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