Alg2 1.3 retake

Find the slope from the table:

• -2/5
• 5/-2
• 5/2
• 2/5

Tags

CCSS.8.EE.B.5

• positive trend
• negative trend
• no trend

Tags

CCSS.HSF-LE.A.1B

What type of correlation does this scatter plot show?

• positive 
• negative
• no correlation
• nonlinear association

Tags

CCSS.HSF-LE.A.1B

Estimate the correlation coefficient for this scatterplot.

• A) r = -0.9

• B) r = 1

• C) r = 0.9

• D) r = -1

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

A perfect positive correlation has a correlation coefficient of ____. 

• 1
• -1
• 0

Tags

CCSS.HSF-LE.A.1B

Which with is the line of best fit?

• A) Black

• B) Orange

• C) Red

• D) Blue

Tags

CCSS.8.EE.B.5

For the equation
y - 3 = 2(x + 4),
the line has a slope of 2 and contains what point?

• (-4, 3)
• (3, -4)
• (-3, -4)
• (-4, -3)

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

Write the equation in point-slope form of the line that passes through the given point and has the given slope.

(4, -7); m = -1/4

• y = -1/4(x - 4) -7

• y = -1/4(x + 7) +4

• y = 4(x - 4) - 7

• y = -1/4(x - 4) +7

What is the equation of the line of best fit?

• y = -25x + 170

• y = -5/8x + 170

• y = 25x + 170

• y = 5/8x + 170

Tags

CCSS.8.EE.B.5

The table shown is comparing a person's foot length to their height in cm. Calculate a line of best fit.

• f(x) = 25.05x + 5.57
• f(x) = 5.57x + 25.05
• f(x) = -5.57x + 25.05
• f(x) = 5.57x - 25.05

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

CCSS.HSS.ID.C.8