Find the domain of the logarithmic function. Write your answer in interval notation.f(x) = ln (7 - x)
A. (-7, ?)
B. (-?, 0)
C. (-?, 7) ? (7, ?)
D. (-?, 7)
Answer: D
Mathematics
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Use the fundamental identities to simplify the expression.
A. cos x B. sin2 x C. cos2 x D. sin x
Mathematics
Solve the system of equations graphically, if a solution exists.3x + 2y = 14-2x + 3y = 8
A. No solution B. x = 3, y = 14 C. x = 2, y = 4 D. x = 4, y = 2
Mathematics
Choose the description that matches the equation of the conic section.5x2 - y = 9
A. A vertical ellipse. B. A parabola opening to the right or left. C. A hyperbola with a vertical axis. D. A parabola opening upward or downward.
Mathematics
Determine if the vertex of the graph is a maximum point or a minimum point.y = x2 - 2x + 1
A. Maximum B. Minimum
Mathematics