The differential equation 
is
Select the correct answer.
?
A. first order linear
B. second order linear
C. third order linear
D. first order nonlinear
E. second order nonlinear
Answer: C
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Find the vertex of the parabola.y = 9x2 - 54x + 83
A. (3, 0) B. (3, 2) C. (2, 3) D. (2, 0)
Find the vertex, focus, and directrix of the parabola.y2 = 32x
A. Vertex: V(0, 0); focus: F(8, 0); directrix: x = 8 B. Vertex: V(0, 0); focus: F(8, 8); directrix: x = 8 C. Vertex: V(0, 0); focus: F(0, 8); directrix: y = -8 D. Vertex: V(0, 0); focus: F(8, 0); directrix: x = -8
Determine whether or not the function is one-to-one.f(x) = |64 - x2|
A. Yes B. No
Solve the problem.Total profit P is defined as total revenue R minus total cost C, and is given by the function 
Find the total profit P(x) if 
and 
A. P(x) = 0.3x2 + 210x - 8000 B. P(x) = 0.7x2 + 210x + 8000 C. P(x) = -0.7x2 - 210x - 8000 D. P(x) = -0.7x2 + 210x - 8000