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vodka [1.7K]
3 years ago
14

Find the slope of the line that contains the points (1,-1) and (-2,8)

Mathematics
1 answer:
motikmotik3 years ago
4 0
The formula for slope is (y-y1)/(x-x1).
1 = x
-1 = y
-2 = x2
8 = y2

You would plug those into the formula: (-1-(-2))/(-1-8) and that would equal to: 1/(-9).
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Solve 7 ( x + 1 ) + 2 = 5x + 15
yawa3891 [41]

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5 0
3 years ago
Help!! BRAINLIEST TOO!
natulia [17]

Answer:

36.5 inches

Step-by-step explanation:

Given

See attachment for the given data

Required

Which length is closest to 4.2lb

The given data is a linear dataset.

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m =\frac{y_2 - y_1}{x_2 - x_1}

Pick any two corresponding points from the table

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So:

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The linear equation is then calculated using:

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Open bracket

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y = 0.105x + 0.37

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4 0
3 years ago
Write two equations. the first equation should express the area of the square (a as a function of the length (l of a side. the s
Sergeu [11.5K]

Answer:

a = l²

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Step-by-step explanation:

The area of a rectangle is the product of its length and width. When that rectangle is a square, the length and width are the same. Here, they are given as "l". Then the area of the square is ...

a = l·l = l²

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The volume of a cuboid is the product of its height and the area of its base. A cube of edge length s has a square base of side length s and a height of s. Then its volume will be ...

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The two equations you want are ...

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