Consider the graph of the line of best fit, y = 0.5x + 1, and the given data points.
2 answers:
The residual value is the vertical distance between the observed value and the predicted value. In other words,
residual value = point in scatter plot - point in the line of best fit
When , the corresponding scatter plot point is at
and the corresponding point in the line of best fit is
[can be seen from the graph]
Hence,
residual value = . Answer choice B is correct.
ANSWER: B
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Answer:
17.89 ft
Step-by-step explanation:
This is a right triangle so we can use the Pythagorean theorem
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse
8^2 +16^2 = c^2
64+ 256 = c^2
320 =c^2
Taking the square root of each side
sqrt(320) = sqrt(c^2)
sqrt(64*5) = c
sqrt(64) sqrt(5) =c
8 sqrt(5) = c
17.88854382=c
17.89 ft
