X+5 4
x+5
4
14. Which of the following is a rational function?
4x-10
A. f(x) = 2x² - 7
C. f(x) =
B. x +2 23 D.**-12
15. Which of the following is considered rational inequality?
A. X +355
C. f(x) =
B.52***
D. X + 2
16. What do you call a root obtained in the process of
solving an equation which looks correct but after
analyzing it turns out as incorrect?
A. extraneous solution C. least common denominator
B. rational expression D. quotient
For items 17-18, refer to the rational equation:
4 2
17. What will be the new form of the equation when it is
multiplied by its least common denominator?
A. 4x +3= 6x
C. 3x + 4 = 2x
B. 6x + 4 = 3x
D. 12x + 3 = 12
18. What will be the solution of the given rational equation?
A.
B.
C. 2 D. 3
19. Solve for the solution set of the rational inequality
1
3
6
3
3
2
5
3
x-3
x+1
A. (-00-7 U (-1,00) C. (-00, -1) U (3, 0)
B. (-7, -1) U (3,0) D. (-7, -1] U (3.)
by
4
For numbers 20 - 22 refer to the function, f(x) = -- and whose
graph is given below.
20. What is the domain of f(x)?
A. x=2 C. x=2
B. y = 1 D. y 1
Em2
21. What is the range of f(x)?
A. X=2 C. X2
B. y=1 D. y 1
-2 +6
(x)?
22. What is the vertical asymptote of f(x)?
A. X=2 B. X²2 C. y=1