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ladessa [460]
3 years ago
6

Which expression can be used to determine the slope of the line that passes through the points (–7, 3) and (1, –9)?

Mathematics
2 answers:
cluponka [151]3 years ago
7 0
To determine the slope, you can use the following formula:

(y2-y1)/(x2-x1)
nevsk [136]3 years ago
7 0
The distance formula is one method

The change in y over the change in x equals the slope.

(-7, 3) & (1, -9)

To get from 1 to -7 you subtract 8
To get from -9 to 3 you add 12

12/-8 reduces to 3/-2

The slope is 3/-2
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Answer:

The length of the shadow the telephone booth is <u>12 ft</u>.

Step-by-step explanation:

Given:

An adult elephant that is 10 ft tall casts a shadow that is 15 ft long.

The length of the telephone booth is 8 ft.

Now, to find the length of the shadow the telephone booth casts.

Let the length of the shadow the telephone booth be x.

As given, an adult elephant that is 10 ft tall casts a shadow that is 15 ft long.

So, 10 ft is equivalent to 15 ft.

Thus, 8 ft is equivalent to x.

Now, to get the length of the shadow of the booth we get cross multiplication method:

\frac{10}{15} =\frac{8}{x}

<em>By cross multiplying we get:</em>

10x=120

<em>Dividing both sides by 10 we get:</em>

x=12.

Therefore, the length of the shadow the telephone booth is 12 ft.

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