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Increases in temperature are recorded with positive numbers. Decreases in temperature are recorded with negative numbers.
Once the sun went down, the outside temperature decreased
2^(@)C per hour over 4 hours.
What is the total change in temperature over the 4 hours?

^(@)C

Increases in temperature are recorded with positive numbers. Decreases in temperature are recorded with negative numbers. $\newline$ Once the sun went down, the outside temperature decreased $2^{\circ} \mathrm{C}$ per hour over $4$ hours. $\newline$ What is the total change in temperature over the $4$ hours? $\newline$ ${ }^{\circ} \mathrm{C}$ ____

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Write exponential functions: word problems

Full solution

Q. Increases in temperature are recorded with positive numbers. Decreases in temperature are recorded with negative numbers.

\newline

Once the sun went down, the outside temperature decreased

2^{\circ} \mathrm{C}

per hour over

4

hours.

\newline

What is the total change in temperature over the

4

hours?

\newline

{ }^{\circ} \mathrm{C}

____

Calculate total decrease: Calculate the total decrease in temperature by multiplying the hourly decrease by the number of hours. $\newline$ Total change = $\text{Hourly change} \times \text{Number of hours}$
Substitute given values: Substitute the given values into the equation. $\newline$ Total change = $2^{(@)}C \times 4$ hours
Perform multiplication: Perform the multiplication to find the total change. $\newline$ Total change = $8^(@)C$

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