Find the maximum y-value on the graph of y = f(x).f(x) = -x2 + 4x + 3
A. -7
B. -3
C. 3
D. 7
Answer: D
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Solve.A jet plane traveling at a constant speed goes 1200 miles with the wind, then turns around and travels for 1000 miles against the wind. If the speed of the wind is 50 mph and the total flight took 4 hours, find the speed of the plane in still air.
A. 550 mph B. 605 mph C. 525 mph D. 435 mph
Give the domain and range of the relation.{(3, 7), (-1, -8), (-7, -4), (5, -8)}
A. domain: {-8, -4, 7}; range: {-7, -1, 3, 5} B. domain: {3, 5, 7}; range: {-8, -7, -4, -1} C. domain: {-7, -1, 3, 5}; range: {-8, -4, 7} D. domain: {-8, -7, -4, -1}; range: {3, 5, 7}
For the given functions f and g, find the requested composite function value.f(x) = 18x2 - 7x, g(x) = 7x - 2;
Find (f ? g)(4).
A. 1818 B. 11,986 C. 10,168 D. 6760
Solve.
= 
A. 7
B. 36
C. 
D. 144