College

The stopping distance (at some fixed speed) of regular tires on glare ice is a function of the air temperature [tex]F[/tex], in degrees Fahrenheit. This function is estimated by [tex]D(F) = 2F + 115[/tex].

Find the following values:

[tex]\[

\begin{array}{l}

D(0) = 115 \\

D(-40) = 35 \\

D(13) = \square

\end{array}

\][/tex]

Answer :

We are given the stopping distance function

[tex]$$
D(F) = 2F + 115.
$$[/tex]

To find [tex]$D(13)$[/tex], substitute [tex]$F = 13$[/tex] into the function:

[tex]$$
D(13) = 2(13) + 115.
$$[/tex]

First, calculate the multiplication:

[tex]$$
2 \times 13 = 26.
$$[/tex]

Then, add [tex]$115$[/tex]:

[tex]$$
26 + 115 = 141.
$$[/tex]

Thus, the value of [tex]$D(13)$[/tex] is [tex]$\boxed{141}$[/tex].

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