9514 1404 393
Answer:
A. The equation represents a linear function because the equation is in the form y = mx + b
Step-by-step explanation:
A linear function does not have to be in the form y = mx + b, but if a function is in that form, it is a linear function.
choice A is appropriate
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A function may have two variables, x and y, and not be a linear function. For example, y = x² is not a linear function. The fact that it has two variables is not what makes it linear.
In the linear equation y = mx + b, y-intercept represents the value of y. It is the point where the line crosses the y-axis(vertical axis)
Finding the y-intercept is done by looking at which point in the graph crosses the y-axis. This point will always have an x-coordinate of zero(0).
The margin of error given the proportion can be found using the formula
![z* \sqrt{ \frac{p(1-p)}{n} }](https://tex.z-dn.net/?f=z%2A%20%5Csqrt%7B%20%5Cfrac%7Bp%281-p%29%7D%7Bn%7D%20%7D%20)
Where
![z*](https://tex.z-dn.net/?f=z%2A)
is the z-score of the confidence level
![p](https://tex.z-dn.net/?f=p)
is the sample proportion
![n](https://tex.z-dn.net/?f=n)
is the sample size
We have
![z*=2.58](https://tex.z-dn.net/?f=z%2A%3D2.58)
![p=0.38](https://tex.z-dn.net/?f=p%3D0.38)
![n=80](https://tex.z-dn.net/?f=n%3D80)
Plugging these values into the formula, we have:
![2.58 \sqrt{ \frac{0.38(1-0.38)}{80} } =0.14](https://tex.z-dn.net/?f=2.58%20%5Csqrt%7B%20%5Cfrac%7B0.38%281-0.38%29%7D%7B80%7D%20%7D%20%3D0.14)
The result 0.14 as percentage is 14%
Margin error is 38% ⁺/₋ 14%
Answer:
6
Step-by-step explanation:
4^2 / 8*3=
16/8*3=
2*3=
6
The answer is 4,162 for 564+3,598