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Which equation BEST represents the line of best fit for the scatterplot? A) y = 2.5x + 25 Eliminate B) y = −2.5x + 20 C) y = −0.05x + 20 D) y = −0.005x + 22.5
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Jun 4, 2019
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Which equation BEST represents the line of best fit for the scatterplot?
A) y = 2.5x + 25
Eliminate
B) y = −2.5x + 20
C) y = −0.05x + 20
D) y = −0.005x + 22.5
Mathematics
high-school
Nate Fox
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B
at first we need a negetive gradient
at second we need the more valuance gradient
Daniel Becroft
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Jun 5, 2019
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Daniel Becroft
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The right answer is: D\
Because y = −0.005x + 22.5
Choose 2 points
to find the
slope: (1500, 12.5) and (1000,15)
15 − 12.51000 − 1500
= −0.005
Also, the y-intercept is approximately 22.5.
y = −0.005x + 22.5
is correct, which is D.
Pransh Tiwari
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Jun 10, 2019
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Pransh Tiwari
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