Use the graph to determine whether the function is one-to-one.
A. Yes
B. No
Answer: B
Mathematics
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Add or subtract as indicated.Add.-6z4 + 8z3
A. -5z4 + 8z3 - 18z B. -6z4 + 9z3 + 18z C. -6z4 + 7z3 + 18z D. -6z4 + 9z3 - 18z
Mathematics
Solve the equation. Give an approximate solution to four decimal places.6 ? 4x = 28
A. {0.1542} B. {1.1112 C. {2.2297} D. {1.0485}
Mathematics
Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. no solution; ? B. {(1, -1)} C. {(-1, -2)} D. {(-2, -1)}
Mathematics
Find the vertex, the focus, and the directrix of the parabola.y = 2x2 + 4x + 6 = 0
A. V: 
; F: (-1, 12); D: x = 4
B. V: 
; F: 
; D: x = 
C. V: (-1, 4); F: 
; D: y = 
D. V: 
; F: (-1, 6); D: x = 2
Mathematics