Andrea’s work to find the equation of a trend line through the points (48, 61) and (72, 195) is shown below
2 answers:
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Formula for Riemann Sum is:
interval is [1,3] so a = 1, b = 3
f(x) = 3x , sub into Riemann sum
Continue by simplifying using properties of summations.
Now you have an expression for the summation in terms of 'n'.
Next, take the limit as n-> infinity.
The limit of
goes to 0, therefore the limit of the summation is 12.
The area under the curve from [1,3] is equal to limit of summation which is 12.
interval is [1,3] so a = 1, b = 3
f(x) = 3x , sub into Riemann sum
Continue by simplifying using properties of summations.
Now you have an expression for the summation in terms of 'n'.
Next, take the limit as n-> infinity.
The limit of
The area under the curve from [1,3] is equal to limit of summation which is 12.
Answer: The answer is C) 9x + 4.5 - 2 x= 2.3 + 7x + 2.2.
Explanation: The explanation is in the image.
