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7nadin3 [17]
3 years ago
15

What slope of a line that passes through (4, -1) and (2,9)

Mathematics
2 answers:
marin [14]3 years ago
6 0

Answer:

-5

Step-by-step explanation:

(4 \:  \:  ,\:  \:  \:  - 1) =  > (x1 \:,  \:  \: y1) \\ (2 \:  \:   \:  \:  \:  \: , \:  \:  \:  \: \: 9) =  > (x2 \:  \: , \:  \: y2)

slope \\  =  \frac{y1 - y2}{x1 - x2}  \\  =  \frac{( - 1 - 9)}{(4 - 2)}  \\  =  \frac{ - 10}{2}  \\  = -5

hope this helps

brainliest appreciated

good luck! have a nice day!

pickupchik [31]3 years ago
3 0

Answer:

-5

Step-by-step explanation:

The slope is given by

m= (y2-y1)/(x2-x1)

   = (9 - -1)/ ((2 - 4)

   = (9+1)/(2-4)

   = 10/-2

   = -5

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Answer:

Step-by-step explanation:

Not near enough information to know.

I ASSUME that the pool is surrounded by a walkway of constant width (w = 2 ft, from comments)

The pool shape is important as well. No mention of  the shape

If the pool is circular and the walkway is 3 ft wide

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Still an infinite number of rectangular length an width dimensions for a pool with a 2 ft wide walkway around it.

Let's say that we are told the pool is 12 ft wide with 2 ft walkway.

Let L be the pool length

110 = 2(12 + 2(2)) + 2(L + 2(2))

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