Solve the system of nonlinear equations using the method of elimination.
A. (
, 8), (
, -8), (-
, 8), (-
, -8)
B. (
, 8), (-
, 8)
C. (8, 
), (8, -
)
D. ?
Answer: B
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Write decimal notation.
A. -0.0591 B. -59.1 C. -0.591 D. -5.91
Find the vertex, focus, and directrix of the parabola. Graph the equation.(x - 1)2 = 4(y + 1)
A. vertex: (1, -1)
focus: (1, 0)
directrix: y = -2
B. vertex: (-1, 1)
focus: (0, 1)
directrix: x = -2
C. vertex: (1, -1)
focus: (2, -1)
directrix: x = 0
D. vertex: (-1, 1)
focus: (-1, 2)
directrix: y = 0
Solve the problem using matrices.The table below shows the number of birds for three selected years after an endangered species protection program was started.
Use the quadratic function y = ax2 + bx + c to model the data. Solve the system of linear equations involving a, b, and c using matrices. Find the equation that models the data.
A. y = 7x2 - 9x + 28 B. y = 10x2 - 27x + 21 C. y = 5x2 + 9x + 25 D. y = 6x2 + 18x + 20
For the functions f(x) and g(x), determine the domain of (f/g)(x) (the quotient of f and g).f(x) = 
, g(x) = 6 - x
A. {x ? x is a real number and x ? 6} B. {x ? x is a real number and x ? -3 and x ? -6} C. {x ? x is a real number and x ? 3} D. {x ? x is a real number and x ? 3 and x ? 6}