If you have 3x + y = 9 write it in slope intercept form... what is the slope, y intercept?
1 answer:
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Using the given information we found that the equation of the parabola is:
y = (-4/9)*(x - 3)^2 + 5
And its graph is below.
<h3>How to get the equation of the parabola?</h3>
For a parabola with vertex (h, k), the equation is:
y = a*(x - h)^2 + k
Here the vertex is (3, 5), so the equation is:
y = a*(x - 3)^2 + 5
And the y-intercept is y = 1, this means that:
1 = a*(0 - 3)^2 + 5
1 = a*9 + 5
1 - 5 = a*9
-4/9 = a
So the parabola is:
y = (-4/9)*(x - 3)^2 + 5
And its graph is below.
If you want to learn more about parabolas, you can read:
Answer:
The variance is 122.0627 kg
Step-by-step explanation:
The square of the standard deviation of a distribution gives us the variance.
If a random sample of 10 subjects have weights with a standard deviation of 11.0482 kg.
Then the standard deviation is
To get the variance, we square both sides to get;
This implies that,