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Svetach [21]
2 years ago
7

Convert the following quadratic from vertex form to standard form. Y=(x-1)^2-1

Mathematics
1 answer:
MArishka [77]2 years ago
4 0
In standard form: y= x^2 - 2x
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Step-by-step explanation:

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A linear regression is done on data the line of best fit is y= 1.25x-6.25. What is the residual for the point (1,1)?
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Answer:

6

Step-by-step explanation:

Find the predicted y value when x=1:

\hat{y}=1.25x-6.25\\\hat{y}=1.25(1)-6.25\\\hat{y}=1.25-6.25\\\hat{y}=-5

Find the residual:

\text{Residual}=\text{Actual Value}-\text{Predicted Value}\\\text{Residual}=y-\hat{y}\\\text{Residual}=1-(-5)\\\text{Residual}=1+5\\\text{Residual}=6

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Ratling [72]

Answer:

All I know

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3 years ago
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Let the distance be x miles

Time = Distance / speed

Time taken by Mike to go to his friend's house = x / 40 hours

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Area of the triangle:
= 12 x 15 x 1/2

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