3 years ago

A members-only speaker series allows people to join for $23 and then pay $1 for every

Mathematics

1 answer:

givi [52]3 years ago

7 0

So it’s 23 followers to join and they charge them $1 an event which is 44 dollars and event

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$y =120*1.1^x$

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Step-by-step explanation:

Given

Let

$x \to months$

$y \to mice$

So, we have:

$(x_1,y_1) = (0,120)$ --- Monday

$(x_2,y_2) = (1,132)$ --- One month later

Required

The function

The function is represented as:

$y = ab^x$

In $(x_1,y_1) = (0,120)$ , we have:

$120 =a * 1$

$120 =a$

Rewrite as:

$a = 120$

In $(x_2,y_2) = (1,132)$ , we have:

$132 = a * b^1$

$132 = a * b$

Substitute $a = 120$

$132 = 120 * b$

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$b = \frac{132}{120}$

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$y = ab^x$

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$y =120*1.1^x$

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$y = a(1 + r)^x$

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So:

$1+r =b$

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$r = b-1$

$r = 1.1-1$

$r = 0.1$

Express as percentage

$r = 0.1*100\%$

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