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 = 0.06 x squared + 0.31 x + 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

Please select the best answer from the choices provided

A
B
C
D

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

What is the value of x in the equation 2(x-4) = 4(2x + 1)?