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Mathematics 10 Online
OpenStudy (lena772):

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OpenStudy (lena772):

@ganeshie8

ganeshie8 (ganeshie8):

proving linear is easy

ganeshie8 (ganeshie8):

uve created the table in ur previous step right ?

ganeshie8 (ganeshie8):

proving investor is linear :- in that table, take the difference of any two consecutive years. u wil get the difference as 50. that means the investor function grows at a constant rate of 50 per year. its a straight line

ganeshie8 (ganeshie8):

A=5000+50t ^ you can compare it wid a straight line : y = b + mx where slope = m = 50

ganeshie8 (ganeshie8):

Looks great ! yes just mention about y-intercept also.

OpenStudy (lena772):

What do I say about it

ganeshie8 (ganeshie8):

just say that, the starting Principal amount, 5000 is the y-intercept

OpenStudy (lena772):

Ok now explaining how the others are exponential ^_^

ganeshie8 (ganeshie8):

use the same trick

ganeshie8 (ganeshie8):

compare them wid the standard exponential funciton : \(y = ab^x\)

ganeshie8 (ganeshie8):

\(A=5000(1+0.012)^t \) \(A=5000(1.012)^t \)

OpenStudy (lena772):

Sorry but what do the ab stand for? I'm not good at exponential

ganeshie8 (ganeshie8):

a = y-intercept b = fixed base x = variable power

ganeshie8 (ganeshie8):

here also, y-intercept gives u the starting principal.

OpenStudy (lena772):

:D thank you so much

ganeshie8 (ganeshie8):

np :)

OpenStudy (lena772):

@ganeshie8

ganeshie8 (ganeshie8):

Looks good :)

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