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goblinko [34]
2 years ago
15

Find the rate of change from (4, 12) to (7, 17)

Mathematics
1 answer:
NISA [10]2 years ago
5 0
Rate of Change = 5/3.
Also called slope, or rise over run.
To find the rate of change you would do y1 - y2 / x1 - x2. You could also do y2 - y1 / x2 - x1.
For this, you would do 17-12 / 7 - 4. Which is equal to 5/3.
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Step-by-step explanation:

Given the 2 equations

x - 3y = 5 → (1)

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Rearrange (1) expressing x in terms of y by adding 3y to both sides

x = 5 + 3y → (3)

Substitute x = 5 + 3y in (2)

5(5 + 3y) - 2y = - 1 ← distribute left side

25 + 15y - 2y = - 1

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Step-by-step explanation:

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