Make a scatter plot of the data below. Speed (mph)

Stopping distance (ft)

10

12.5

20

36.0

30

69.5

40

114.0

50

169.5

60

249.0

70

325.5

Using the quadratic regression equation

y=0.06x^2 + 0.31x+ 4

predict what your stopping distance would be if you were going 80 miles per hour.

a.

363.2 ft

b.

412.8 ft

c.

355.2 ft

d.

33.6 ft

Ms. sutton recorded the word counts and scores of the top ten essays in a timed writing contest. the table shows her data. how does the word count of an essay relate to its score in the contest? word count tends to decrease as the score decreases. word count tends to increase as the score decreases. word count tends to remain constant as the score decreases. word count has no apparent relationship to the score of the essay.

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

Which of the following disjunctions is true? 4 + 4 = 16 or 6 - 5 = 11 4 · 3 = 7 or 3 - 2 = 5 8 - 5 = 13 or 7 · 2 = 12 7 - 4 = 11 or 6 + 3 = 9