Slope and Scatterplots

What does the data you created from this data in your scatter plot imply?

• strong positive correlation

• strong negative correlation

• weak negative correlation

• weak positive correlation

What is the Slope of the two graphs?  Left graph then right graph.

• Positive, Zero

• Negative, Undefined

• Zero, Undefined

• No Slope, Zero

Tags

CCSS.8.EE.B.5

Write the equation for the line of best fit.

Round decimals to TWO places.

Mathematical Equivalence

ON

Tags

CCSS.8.EE.C.8C

What is the correlation coefficient r for this data set?

Round to TWO decimal places.

Mathematical Equivalence

ON

What type of association does this graph have?

• positive

• negative

• none

• all of the above

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

Tags

CCSS.8.EE.B.5

Which line is the best line of best fit?

• a

• b

• c

• i don't see any lines

Tags

CCSS.8.EE.B.5

For the equation
y + 1 = -3(x - 5),
the line contains the point (5, -1) and has a slope of?

• -1

• 1

• -3

• 5

Find the slope of the line that passes through the points (2, 4) and (6, 12)

• 1/2

• -1/2

• 2

• -2

Tags

CCSS.8.EE.B.5