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Greeley [361]
3 years ago
10

What is point-slope form? When can you use point-slope form? How is it useful?

Mathematics
1 answer:
liq [111]3 years ago
6 0
The formula for point slope form is y=mx+b. You can use it to plot lines, find the slope, find the y intercept, and you can also change it into other forms like point-slope and standard form.
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Katie invests $5,000 in an account earning 4% interest, compounded annually for 5 years. Two years after Katie's initial investm
Lyrx [107]
Emily earned $166 more in her account than Katie.

We use the compound interest formula for both of these:

A=p(1+r)^t

For Katie's deposit:
A=5000(1+0.04)^5=5000(1.04)^5 = 6083.26

This gives Katie 6083.26-5000 = 1083.26 in interest (1083, to the nearest dollar).

For Emily's deposit:
A=10000(1+0.04)^3=10000(1.04)^3=11248.64

This means she earned 11248.64-10000=1248.64 in interest (1249, to the nearest dollar).

The difference in interest is given by 1249-1083=166
4 0
3 years ago
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Https://www.illustrativemathematics.org/content-standards/tasks/703  check it out it might help
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4x - 2y = 12 \\   \:  \:  \:  \:  \:  \:  \frac{ - 2y}{ - 2}  =  \frac{ - 4x}{ - 2}  \:  +  \frac{12}{ - 2}  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: y = 2x - 6

Therefore, the answer is 1) y = 2x - 6

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An elevador starts on the 100th floor of a building it descends 4 floor every 10 seconds At what floor will the elevator be 60 s
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