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Vaselesa [24]
2 years ago
9

PLEASE HELPPP ASAPPPPPPP

Mathematics
1 answer:
Mila [183]2 years ago
5 0
You basically have to find the slope, to find the average rate of change, because finding the slope and finding the average rate of change is basically the same thing.

Here's the formula : \frac{y(2) - y(1)}{x(2) - x(1)}

So here, all you'd have to do is simply pick two points, and insert them into this formula. Say you take the points (-2, -2) and (0,-3). You would start from the y-intercept of the second point, and insert them all into the formula.

\frac{-3 - (-2)}{0-(-2)} which would turn into \frac{-1}{2}. And so since you want a good, stable number, and not just a fraction, you would divide -1 and 2, and the average rate of change would be -0.50.

AVERAGE RATE OF CHANGE : -0.50
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Let us solve this system of equations by using the elimination method. Adding the 2 equations, we get

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Substituting this value of y in the first equation, we get

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Therefore, x = -2, and y = -3. Hope this helps! If you have any questions, feel free to ask.

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3 years ago
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A random sample of 11 nursing students from Group 1 resulted in a mean score of 41.3 with a standard deviation of 6.8. A random
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At 1% significance level,  this difference is considered to be extremely statistically significant.

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