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REY [17]
3 years ago
12

In a random sample of 10 on-line statistics students, information was collected about their minutes studied and their chapter te

st scores. X is the minutes studied, and Y is the test score. x : {20,30,45,60,80,90,45,120,90,70} y: {50,45,55,70,80,90,80,100,95,85} Is this relationship positive, negative or no relation?
Mathematics
1 answer:
Vesnalui [34]3 years ago
5 0
That is a postive relationship. The trend is that to more minutes studied corresponds higher score. Althoungh there are exceptions,if you put the values ir order of x and graph the points, you will find a curve that trends to increase when you move from left to right.
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X intercept -7 y intercept -5
Fittoniya [83]
The x-intercept of a line is when the y coordinate is equal to 0. So, the x-intercept would be (0,-7).

The y-intercept of a line is when the x coordinate is equal to 0. So the y-intercept would be (-5,0).

To find the equation of a line, you need the slope and the y-intercept.
We already know the y intercept is -5. The equation for a line is:

Y=mx+b

m stands for slope
b stands for the y intercept.

To find the slope, use the equation-

y1-y2
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x1-x2

Another way to say that is the change in y over the change in x.

Plug in the the 2 coordinate points you know, which are (-7,0) and (0,-5).

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5/-7.

The slope is 5/-7
The Y intercept is -5

The equation of the line is y= 5/-7x -5

The coordinate point for the x intercept is (-7,0)
The coordinate point for the y intercept is (0,-5)
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4 years ago
3x = 4y – 10<br> Solve for x.<br> Solve for y.
Arlecino [84]
Solve for x
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x=(4y-10)/3
solver for y
3x=4y-10
rewrite as 4y-10=3x
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Mademuasel [1]
<span>Implement and follow up on the solution. Hope this helps :)</span>
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Step-by-step explanation:

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