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Mathematics 8 Online
OpenStudy (ibbutibbu.):

PLEEEEEZ HELP PLEEEEEZ

OpenStudy (help!!!!):

sup

OpenStudy (ibbutibbu.):

OpenStudy (ibbutibbu.):

BUNNIES!!! help

OpenStudy (ipwnbunnies):

Use the slope formula. It also gives you average rate of change. \[avg. rate of change = \frac{f(5) - f(4)}{5 - 4}\]

OpenStudy (ipwnbunnies):

Ohh sorry, third to fifth year. Replace the '4's with '3's.

OpenStudy (ibbutibbu.):

so the simplified is \[\frac{ f(1) }{ 1 }\] ?

OpenStudy (ipwnbunnies):

Noooo, no simplifying. Don't you remember slope formula.

OpenStudy (ibbutibbu.):

oh yeah

OpenStudy (ipwnbunnies):

The slope of a line between two points is the difference in the y-coordinates divided by the difference in the x coordinates. Average rate of change is the same thing.

OpenStudy (ibbutibbu.):

I dont get it...

OpenStudy (ipwnbunnies):

Find the value of the function at year 5, which should be x = 5. Find the value of the function at year 3, x = 3. Subtract those two values. Divide it by difference in x values: 5 - 3 = 2

OpenStudy (aum):

\[ \text{Average rate of change between x = 3 and x = 5 is: } \\ \text{ } \\ \frac{f(5) - f(3)}{5 - 3} = \frac{f(5) - f(3)}{2} ~~~ --- (1) \\ \text{ } \\ f(x) = 15(1.23)^x \\ f(5) = 15(1.23)^5 = ? \\ f(3) = 15(1.23)^3 = ? \\ \]Plug f(5) and f(3) into (1) and calculate the average rate of change.

OpenStudy (ibbutibbu.):

@aum can you give bunnies a medal? i want everyone to have a medal

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