By graphing the function, visually estimate its domain and range.h(x) = |x| - 4
A. Domain: (-?, ?); range: (-?, ?)
B. Domain: [4, ?); range: [4, ?)
C. Domain: (-?, ?); range: [-4, ?)
D. Domain: (-?, 4]; range: (-?, 4]
Answer: C
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Find the real solutions of the equation.x5/4 - 4x1/4 = 0
A. {0, 2} B. {-4, 0, 4} C. {0, 4} D. {0}
Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
A. x = 3, y = 9, z = 5; (3, 9, 5) B. inconsistent C. x = -3, y = 9, z = 6; (-3, 9, 6) D. x = 3, y = 5, z = 9; (3, 5, 9)
Fill in the blank with one of the words or phrases listed below.
A(n) 
is one whose numerator is less than its denominator.
A. proper fraction B. mixed number C. complex fraction D. improper fraction
Factor out the largest possible common factor.12a(a - b) + (a - b)
A. 13a(a - b) B. (a - b)(12a + 1) C. 12a(a - b) D. (12a2 + 12b) + (a - b)