Solve the inequality and graph the solution set.-3y - 6 ? -4y - 10
A. {y|y ? -4} or [-4, ?)
B. {y|y > -3} or (-3, ?)
C. {y|y < -3} or (-?, -3)
D. {y|y ? -4} or (-?, -4]
Answer: A
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From the graph of the parabola, determine whether the parabola opens upward or downward, and find the vertex, axis of symmetry, and range of the function. Find the maximum or minimum value of the function and the intervals on which the function is increasing or decreasing.
A. Down, (1, 1), x = 1, [-1, 3], max 1, inc (-?, 1], dec [1, ?) B. Down, (1, 1), x = 1, (-?, 1], max 1, inc (-?, 1], dec [1, ?) C. Down, (1, 1), x = 1, [1, ?), max 1, inc (-?, 1], dec [1, ?) D. Down, (1, 1), x = 1, [1, ?), min -1, inc [0, 1), dec (-?, 0]
Is the ordered pair a solution of the linear system?
; (1, -3)
A. No B. Yes
Solve.2x - 7 = -17
A. -8 B. -12 C. -5 D. 1
Use the properties of determinants to find the value of the second determinant, given the value of the first.
= 85
= ?
A. 170 B. -85 C. 85 D. -170