Solve.x2 - 2y2 = 2xy = 2
A. (2, 1), (-2, -1), (i, i
), (-i
, -i
)
B. (2, 1), (-2, -1)
C. (2, 1), (-2, -1), (i, -i
), (-i
, i
)
D. (i, -i
), (-i
, i
)
Answer: C
You might also like to view...
The graph of a function is given. Decide whether it is even, odd, or neither.
A. even B. odd C. neither
Find the equation that the given graph represents and give the domain, range, and interval(s) over which the function is increasing and decreasing.
A. P(x) = x4 - 2x2 - 3x + 12; domain: (-?, ?); range: (-?, ?); Increasing over (-?, -1.21] and [.97, ?); Decreasing over [-1.21, .97] B. P(x) = 2x3 - 12x2 - 5x - 12; domain: (-?, ?); range: (-?, ?); Increasing over [-.98, 3.09]; Decreasing over (-?, -.98] and [3.09, ?) C. P(x) = -3x5 + 2x4 - x2 + 2x - 12; domain: (-?, ?); range: (-?, ?); Increasing over (-?, -1.33] and [.67, ?); Decreasing over [-1.33, .67] D. P(x) = -3x3 - 10x2 + 5x + 12; domain: (-?, ?); range: (-?, ?); Increasing over [-2.47, .19]; Decreasing over (-?, -2.47] and [.19, ?)
Answer the question.According to the rules for order of operations, the first steps in evaluating the expression for
are to substitute 2 for x and then .
A. find the cube of 2 B. subtract 5 from 57 C. multiply 5 by 2 D. subtract 57 from 5
Write the algebraic expression without parentheses.-(-4 + 8y)
A. 4 + 8y B. 4 - 8y C. 32y D. -4 + 8y