Multiply, then simplify the product. Assume that all variables represent positive real numbers.(
+ 1)(
- 1)
A. 12
B. 12 + 2
C. 12 - 2
D. 14
Answer: A
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Solve the problem.Find the area of the large rectangle below in two ways. First, find the sum of the areas of the four smaller rectangles. Second, express the area of the large rectangle as the product of its length and width. 
A. area = x2 + 3x + 2 = (x + 2)(x + 1) B. area = x2 + 3x - 2 = (x + 2)(x - 1) C. area = x2 + 4x + 3 = (x + 3)(x + 1) D. area = x2 + 4x - 3 = (x + 3)(x - 1)
Simplify. Assume that variables can represent any real number.
A. 6xy
B. 3xy
C. 6xy
D. 6x2y
List the intercepts for the graph of the equation.x2 + y - 25 = 0
A. (-5, 0), (0, -25), (5, 0) B. (5, 0), (0, 25), (0, -25) C. (0, -5), (25, 0), (0, 5) D. (-5, 0), (0, 25), (5, 0)
Give the domain and range of the relation.{(-4, -8), (-12, 8), (-10, 1), (3, -3), (4, 9)}
A. domain = {9, 8, -3, -8, 1}; range = {4, -12, 3, -4, -10} B. domain = {4, -12, 3, -4, -10}; range = {9, 8, -3, -8, 1} C. domain = {-3, -4, -8, -10, 1}; range = {4, 9, -12, 8, 3} D. domain = {4, 9, -12, 8, 3}; range = {-3, -4, -8, -10, 1}