christiannpettyy
06.10.2019 •
Mathematics
Which equation best represents a trend line for the scatter plot?
y=−37x+4
y=73x+4
y=−73x+4
y=37x+4
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Ответ:
Looking at the graph, you can see the trend line plotted. And conveniently, there are a couple of points on the trend line that are indicated. Those points being (0,4) and (7,1). The equation of a line in slope intercept form is:y = ax+b
Looking at the points available, the point (0,4) already gives us the y intercept since x is equal to 0. So our equation becomes:
y = ax + 4
Now we need to determine a which is the slope. The slope is the change in y divided by the change in x. So let's do that
(1-4)/(7-0) = -3/7
And now our equation becomes:
y = (-3/7)x + 4
And given formatting issues, the first option available is the correct one.
Ответ:
The first box had a greater median, the second box has a greater range than the first box. I wish i could give you more but thats all I got.