22 Form 1E
_____ 8. Solve for :
a. 4 b. c. d. 0, 4
_____ 9. Solve the inequality: and
a. (4, 6] b. (4, ) ( , 6] c. ( , 6] d. ( )
_____ 10. To receive a C in a math course, an average between 70 and 80, inclusive, is
required. Leah has scores of 76, 82, and 87 on her first three math tests. After
the fourth test, she states that she now has a C average. What is the range of
scores possible for her fourth test in order for that statement to be true?
a. [0, 70] b. [70, 80] c. [35, 75] d. [60, 70]
_____ 11. Find the slope of the line passing through the points and .
a. b. c. d.
_____ 12. Find all solutions: .
a. b. c. d.
_____ 13. Solve the inequality:
a. ( , 3) ( , ) b. ( 3, ) c. ( , ) d. ( , 3)
_____ 14. Solve for :
a. { } b. { } c. { , } d. { }
_____ 15. Find all solutions:
a. { 1, 3} b. { 3, 1} c. { 1 } d. { 1 }