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polet [3.4K]
3 years ago
5

What equation best models this data? (Use y to represent the population in millions, and t to represent the year, assuming that

2010 is t = 0.)

Mathematics
1 answer:
lapo4ka [179]3 years ago
5 0

Answer:

y = 2.31x + 309.35

Step-by-step explanation:

Whenever you are checking for a best fitting equation you want to check if it has a constant slope.  If it does then the relation is linear and super easy.

So, since the t values are increasing by the same amount you want to see if the y values are  too.  And they are, each population entry is increasing by 2.31, this is the slope.  

Also, keep in mind you can caluclate slope with the equation \frac{y_2-y_1}{x_2-x_1}  here x is replaced by t though.

Now, since we know it's linear and we know the slope we can find the equation with the formula  y - y1 = m(x - x1) where again, x is replaced by t and m is the slope 2.31

I am just going to use the first point.  so x1 = t1 = 0

y - 309.35 = 2.31(x-0)

y = 2.31x + 309.35

Let me know if there was something you didn't understand.  

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If a card is pulled from a 52 card deck what the chance of getting an ace?
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Answer:

\dfrac{1}{13}

Step-by-step explanation:

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6 0
3 years ago
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Alchen [17]
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6 0
3 years ago
How many cubes with edge lengths of 1/4 in. will it take to fill the prism?
Ulleksa [173]

Answer:

1560

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Another way is to multiply 2 1/2 x 3 x 3 1/4 = 5/2 x 3 x 13/4 = 195/8

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3 0
3 years ago
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