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Mathematics 8 Online
OpenStudy (anonymous):

Evaluate Functions

OpenStudy (anonymous):

OpenStudy (anonymous):

@texaschic101 @undeadknight26 @ganeshie8

ganeshie8 (ganeshie8):

plugin x = -2 in given function and simplify

ganeshie8 (ganeshie8):

\(\large f(x) = \dfrac{4}{5} . 5^{2x+12}\)

ganeshie8 (ganeshie8):

\(\large f(-2) = \dfrac{4}{5} . 5^{2(-2)+12}\)

ganeshie8 (ganeshie8):

see if u can simplify

OpenStudy (anonymous):

well first 2 x -2 + -4 + 12 =8

ganeshie8 (ganeshie8):

Excellent ! keep going :)

OpenStudy (anonymous):

so 5 8 times would be 390625 right

ganeshie8 (ganeshie8):

yes,

OpenStudy (anonymous):

but im not finished with the problem yet so 390625 x 4/5

ganeshie8 (ganeshie8):

yes ! multiply it by 4, then divide by 5

OpenStudy (anonymous):

312500

ganeshie8 (ganeshie8):

\(\large \color{red}{\checkmark}\)

OpenStudy (anonymous):

My final answer would be 312500

ganeshie8 (ganeshie8):

\(\large \color{Red}{\checkmark}\)

OpenStudy (anonymous):

WOW thnk u so very much i can actually do this

ganeshie8 (ganeshie8):

Yes lol you're very good :) good luck !

OpenStudy (anonymous):

thnk u

ganeshie8 (ganeshie8):

np :)

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