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natulia [17]
3 years ago
7

What would be the actual length, if the length of the model is 25 ft and the scale factor is less

Mathematics
1 answer:
Sidana [21]3 years ago
6 0

Answer:

20ft

Explanation:

You multiply the model length by the scale factor to find the actual length. <u>If the scale factor is less than zero, then the actual size will be smaller than the model</u>. Therefore, your answer would be 20ft.

Specifically, the scale factor is .8 if the actual size is 20ft, 1 if the actual size is 25ft, and 1.2 if the actual size is 30ft.

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Answer:

The slope-intercept form of the line equation  is:

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Step-by-step explanation:

The slope-intercept form of the line equation

y = mx+b

where

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Determining the slope between (-1, -2) and (3, 4)

\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

\left(x_1,\:y_1\right)=\left(-1,\:-2\right),\:\left(x_2,\:y_2\right)=\left(3,\:4\right)

m=\frac{4-\left(-2\right)}{3-\left(-1\right)}

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substituting m = 3/2 and the point (3, 4) in the slope-intercept form of the line equation

y = mx+b

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switch sides

\frac{3}{2}\left(3\right)+b=4

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subtract 9/2 from both sides

\frac{9}{2}+b-\frac{9}{2}=4-\frac{9}{2}

b=-\frac{1}{2}

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Therefore, the slope-intercept form of the line equation  is:

  • y=\:\frac{3}{2}x\:-\frac{1}{2}
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