If 
, is y a function of x?
?
A. Yes
B. No
Answer: B
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For the functions f and g, find the requested value.Evaluate (f ? g)(-2).y = f(x)y = g(x)
?
A. 2 B. 1 C. -1 D. -0.5
Solve the problem.If a rock falls from a height of 20 meters on Earth, the height H (in meters) after x seconds is approximately H(x) = 20 - 4.9x2.When does the rock strike the ground? Round to the nearest hundredth, if necessary.
A. 2.02 sec B. 4.08 sec C. 0.83 sec D. 0.91 sec
Factor.8x2 + 18xy + 9y2
A. (8x + 3y)(x + 3y) B. (8x + y)(x + 9y) C. (4x - 3y)(2x - 3y) D. (4x + 3y)(2x + 3y)
Plot and interpret the appropriate scatter diagram.The table shows the study times and test scores for a number of students. Draw a scatter plot of score versus time treating time as the independent variable. 
Effect of Study on Test Score
Time (min)
A. Effect of Study on Test Score
| Time (min) |
test scores.
B. Effect of Study on Test Score
| Time (min) |
test scores.
C. Effect of Study on Test Score
| Time (min) |
test scores.
D. Effect of Study on Test Score
| Time (min) |
test scores.