Choose the equation that matches the rational function graphed.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Answer: A
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Remove or add parentheses as indicated.Rewrite a(b + c) - b(c + a) without parentheses.
A. ac + bc B. 2ab + ac - bc C. ac - bc D. ac + bc + 2ab
Determine the size of matrix A and tell whether it is a square matrix, row matrix, column matrix, or none of these.A = 
A. 2 × 3; row matrix B. 3 × 2; row matrix C. 2 × 4; none of these D. 4 × 2; none of these
Use transformations to graph the function. Determine the domain, range, and horizontal asymptote of the function.f(x) = 5-x + 3
A. domain: (-?, ?); range: (3, ?)
horizontal asymptote: y = 3
B. domain: (-?, ?); range: (3, ?)
horizontal asymptote: y = 3
C. domain: (-?, ?); range: (5, ?)
horizontal asymptote: y = 5
D. domain: (-?, ?); range: (5, ?)
horizontal asymptote: y = 5
Write the linear system corresponding to the reduced augmented matrix.
A. x1 = -4, x2 = t + 6, x3 = t for any real number t B. No Solution C. x1 = 4, x2 = -t + 6, x3 = t for any real number t D. x1 = 4, x2 = t + 6, x3 = 0