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Mr. Mole left his burrow and started digging his way down.

A represents Mr. Mole's altitude relative to the ground (in meters) after
t minutes.

A=-2.3 t-7
How fast did Mr. Mole descend?
meters per minute

Mr. Mole left his burrow and started digging his way down. $\newline$ $A$ represents Mr. Mole's altitude relative to the ground (in meters) after $t$ minutes. $\newline$ $A=-2.3 t-7$ $\newline$ How fast did Mr. Mole descend? $\newline$ meters per minute

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Write exponential functions: word problems

Full solution

Q. Mr. Mole left his burrow and started digging his way down.

\newline

A

represents Mr. Mole's altitude relative to the ground (in meters) after

t

minutes.

\newline

A=-2.3 t-7

\newline

How fast did Mr. Mole descend?

\newline

meters per minute

Identify Formula: Identify the formula that represents Mr. Mole's altitude relative to the ground after $t$ minutes. $\newline$ We have the formula $A = -2.3t - 7$ , where $A$ is the altitude in meters and $t$ is the time in minutes.
Determine Rate of Descent: Determine the rate of descent. The rate of descent is given by the coefficient of $t$ in the formula, which is $-2.3$ . This means Mr. Mole descends $2.3$ meters per minute.
Check for Errors: Check for any mathematical errors in the previous steps. $\newline$ The formula $A = -2.3t - 7$ correctly shows a linear relationship between altitude and time, and the coefficient of $t$ is indeed the rate of descent. There are no mathematical errors.

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