Day A: algebra LOBF

You can use two lattice points from a line of best fit to determine an approximate line of best fit equation?

• true

• false

The equation for this given table is:

y = 0.66x + 33.31

• true

• false

What is the line of best fit for this scatter plot using the 7 ordered pairs? Round the slope and y-intercept to the nearest hundredths place.

• y = 0.44x + 3.10

• y = 0.45x + 3.04

• y = 0.44x + 3.11

• y = 0.45x + 3.11

On day 8, how many parakeets would you expect to see? Remember, you can't see partial parakeets.

• 5

• 6

• 7

• 8

Find the line of best fit using the 5 ordered pairs. Remember to round to the nearest hundredths place for the slope and y-intercept. Did you get: y = 9.95x + 0.41 ?

• yes

• no

Using the line of best fit equation, how many approximate surfers would you expect if the wave height was 8? I am assuming this in measured in feet.

• 75

• 77

• 80

• 82

What is the line of best fit equation for this table? Remember, you need to round the slope and y-intercept to the nearest hundredths place.

• y = 84.88x - 318.28

• y = 84.89x - 318.27

• y = 88x - 318

• y = 84.89x - 319

Using the line of best fit, approximately how much would someone with a height of 5.5 feet weigh (in pounds)?

• 145 pounds

• 149 pounds

• 151 pounds

• 153 pounds

Title? No clue. But, I can still generate a question or two. What is the equation of this data table? Round the slope and y-intercept to the nearest hundredths place.

• y = 9.8x + 0.7

• y = 9.78x + 0.7

• y = 9.80 x + 0.70

• y = 9.79x + 0.71

Using the line of best fit equation, what is the approximate distance at 10 seconds?

• 86 meters

• 92 meters

• 99 meters

• 102 meters