Equation of Trend Line

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• 14

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• 64

If m = 8/5 and b = -8/5, what is the equation of the trend line in y= mx + b?

• 0 = 8/5 (1) - 8/5

• y = -8/5 x + 8/5

• y = 8/5 x - 8/5

• y = mx + b

If you selected point (0,9) and m = -3/4 what substitution is correct to solve for b?

• 0 = -3/4 (9) + b

• 9= 3/4 (0) + b

• 9 = -3/4(0) + b

• y = mx + b

What ordered pairs would you use to find the slope for the trend line?

• (1,0) (6,8)

• (8,6) (0,1)

If you selected point (1,0) and m = 8/5, what substitution is correct to solve for b?

• 1 = 8/5 (0) + b

• 0 = 8/5 (1) + b

• 8/5 = 1 (0) + b

• y = mx + b

What ordered pairs would you use to find the slope for the trend line?

• (9,0) (3,8)

• (0,9) (8,3)

Which of the following could be the equation of the trend line for this graph?

• There is no trend line because there is no association

Which equation could be a trend line for this graph?

• There is no trend line because there is no association

• gain 5 hour of sleep for 7 cups of coffee

• lose 5 hours of sleep for 7 cups of coffee

• lose 7 cups of coffee for 5 hours of sleep

• lose 5 cups of coffee for 7 hours of sleep

• gain 7 cups of coffee for every 5 hours of sleep

What is the equation of the line of best fit

• y= -2x + 10

• y= 10x+ 2

• y= 10