CCSS.Math.Content.HSF.LE.A.1

What type of function is y = 7(5/4)^x?

• Exponential Growth
• Exponential Decay
• Linear
• None of the above

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CCSS.Math.Content.HSF.LE.A.1

Write an equation that models the following situation:
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.

• y=6(0.14)^x
• y=6(1+14)^x
• y=6(1.14)^x
• y=6(0.86)^x

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CCSS.Math.Content.HSF.LE.A.1

The half-life of Zn-71 is 2.4 minutes. If one had 100.0 g at the beginning, how many grams would be left after 7.2 minutes has elapsed?

• 100.0g
• 50.0g
• 12.5g
• 8.5g

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CCSS.Math.Content.HSF.LE.A.1

What equation matches the graph?

• f(x) = 3^x
• f(x) = (⅓)^x
• f(x) = log₃(x)

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CCSS.Math.Content.HSF.LE.A.1

Agnes purchases a ring for $200 and it depreciates 6% per year from the date of purchase. Which function models the value V(t) of the ring?

• V(t)=200(1.6)^t
• V(t)=1.06x+200
• V(t)=200(.06)^t
• V(t)=200(.94)^t

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CCSS.Math.Content.HSF.LE.A.1

Which of the following is an increasing exponential function whose y-intercept is 50?

• y = 50(.05)^x
• y = 50x - 4
• y = (2)^x + 50
• y = 50(1.4)^x

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CCSS.Math.Content.HSF.LE.A.1

Is the sequence-4, -12, -36, -108,... arithmetic geometric, or neither?

• arithmetic
• geometric
• neither

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CCSS.Math.Content.HSF.LE.A.1

What does this graph represent?

• Exponential Decay

• Exponential Growth

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CCSS.Math.Content.HSF.LE.A.1

In the equation f(x)=a(b)^x, what is b called when b<1?

• Growth Rate (increase)

• Decay Factor (decrease)

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CCSS.Math.Content.HSF.LE.A.1

How do we know that is an example of an linear growth?

• Its a line going up

• Its a line going down

• Its a smooth curve going down

• Its a smooth curve going up

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CCSS.Math.Content.HSF.LE.A.1