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Gearyjames8
30.09.2019 •
Mathematics
The graph highlights two other points on the trend line. use them to find another equation for the trend line shown for this scatter plot.
y=82x+998 , y=247.7x-335 , y=743x-1647 , y=998+82 ?
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Ответ:
y = mx + c
where m is the slope of the line , and c is constant
m will be calculated using the points (2,1162) , (11,1900) as follow
m = (1900-1162)/(11-2) = 82
∴ y = 82 x + c
By substituting with the point (2,1162) to find c
∴ c = y - 82x = 1162 - 82 * 2 = 998
∴ y = 82x + 998
The first choice is the correct answer
Ответ:
-674
Step-by-step explanation:
each number it subtracts by 11
-11*60=-660
-660-14=-674