Q

#### Exponential functions

(10 Questions)Problems related to big math 2

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-128^\frac{5}{7}

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If f(x) = b^x , identify the value of b.

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The function y= (1.8)^x represents exponential -------------------.

**A**

**B**

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Sally takes 325 mg dosage of ibuprofen. Each hour the dosage in her bloodstream reduces by 29%.Write an exponential decay model function and estimate the value of y when t = 1.5.

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This cartoon vaguely depicts an exponential growth function. Do you like it?

**A**

**B**

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If f(t) = 200(\frac{4}{3})^t. The percentage rate of change = -------------------%

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The growth or decay rate of this function
y = a (\frac{5}{4})^\frac{t}{22} is \approx ------------------------- %

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The amount y of duckweed fronts in a pond after t days is y = a\ast(1230.25)^\frac{t}{16} where a is the initial number of fronds.
The duckweed increases by ------------------ % each day?

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Evaluate the expression (-243)^\frac{2}{5}

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The population of Austin was about 490,000 before the start of the decade. The population increased about 3% each year. Write the exponential growth function and interpret the y value when t = 10.

**A**

**B**

**C**

**D**

by Sangeetha Pulapaka