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aev [14]
3 years ago
14

Find the slope of the line that contains (-3,7) and (5,-3)

Mathematics
2 answers:
Licemer1 [7]3 years ago
6 0
(-3,7) and (5,-3)

m = slope

So, : 

m = y₂-y₁ / x₂-x₁

Plug in the numbers.

m = -3 - 7 / 5 - (-3)

Simplify.

m = -10 / 8

Simplify.

m = -5/4

So, the slope is -5/4

~Hope I helped!~
Anika [276]3 years ago
5 0
-5/4 is the slope of a line that contains those two points 
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A 4 foot tree was planted in 2012 outside a high school. The tree grew continuously by 22% each year from that point. Find out w
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Answer:

The height of the tree in 2020 was of 19.63 feet.

Step-by-step explanation:

Exponential equation for growth:

The exponential equation for the growth of an amount has the following format:

H(t) = H(0)(1+r)^t

In which H(t) is the amount after t years, H(0) is the initial amount and r is the growth rate, as a decimal.

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This means that H(0) = 4

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This means that r = 0.22

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2020 is 2020 - 2012 = 8 years after 2012, so this is H(8).

H(t) = H(0)(1+r)^t

H(t) = 4(1+0.22)^t

H(4) = 4(1.22)^t

H(4) = 4(1.22)^8 = 19.63

The height of the tree in 2020 was of 19.63 feet.

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