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. Up, (-1, -1), x = -1, [-1, ?), min -3, dec (-?, -1), inc (-1, ?)
B. Up, (-1, -1), x = -1, [-1, ?), min -1, dec (-?, -1], inc [-1, ?)
C. Up, (-1, -1), x = -1, [-3, 1], min -3, dec (-?, -1], inc [-1, ?)
D. Up, (-1, -1), x = -1, [-1, ?), min -1, inc (-?, -1], dec [-1, ?)
Answer: B
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A. 16 tons 984 lb B. 3 tons 1,800 lb C. 4 tons 1,800 lb D. 17 tons 984 lb
Solve the equation by making a table of values. Use -3, -2, -1, 0, 1, 2, and 3 for the values of x in your table.x - 6 = -9
A. 1 B. 0 C. -3 D. -2
Solve the equation. Use natural logarithms. When appropriate, give solutions to three decimal places unless otherwise indicated.ln e7x = 42
A. {294} B. {6} C. {49} D. {35}
Solve the problem.Anne and Carol can paint a room in 13 hours working together. Anne takes 6 hours longer to paint the room working alone than it takes Carol working alone. How long does it take Carol to paint the room by herself?
A. 10 + 
hr
B. 29 hr
C. 16 + 
hr
D. 23 hr