Solve the quadratic equation.x2 - 9 = 0
A. x = 0 or x = 3
B. x = -3 or x = 3
C. x = -3
D. x = 3
Answer: B
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Determine whether the equation defines y as a function of x.x = 
A. Yes B. No
Solve the problem.The length of a rectangle is 20 feet. For what widths is the perimeter less than 64 feet?
A. widths less than 24 ft B. widths less than 12 ft C. widths less than 22 ft D. widths less than 44 ft
Simplify by using the distributive law and combining like terms.7y - 5(3y - 4)
A. -8y - 4 B. -8y - 20 C. 7y + 20 D. -8y + 20
Decide whether the statement is true or false. If it is false, tell why.If k is a positive integer, then x2 = k will have one rational and one irrational solution.
A. True B. False; there will be either two rational solutions or two irrational solutions. C. False; there will always be two rational solutions.