Add and subtract as indicated. Simplify and leave the numerator and denominator in your answer in factored form.
- 
A. 
B. 
C. 
D. 
Answer: A
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Graph the function by using intercepts.f(x) = x - 3
A. 
B. 
C. 
D. 
The algebraic expression has been translated to a word phrase that is ambiguous (unclear). Indicate why the translation is unclear and give a translation that is not ambiguous. 7(x - 9)Translation: seven times x minus nine
A. Mistake: could be translated as 7x - 9 Correct: nine less than seven times x B. Mistake: could be translated as 7 - 9x Correct: nine less than seven times x C. Mistake: could be translated as 7x - 9 Correct: seven times x decreased by nine D. Mistake: could be translated as 7x - 9 Correct: seven times the difference of x and nine
For the pair of functions, find the indicated domain.f(x) = x2 - 49, g(x) = 2x + 3Find the domain of g/f.
A. (-?, -7) ? (-7, 7) ? (7, ?)
B. 
? 
C. (-?, ?)
D. 
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.