Find the axis of symmetry of the parabola defined by the given quadratic function.f(x) = 2x2 + 4x - 7
A. x = -2
B. x = 1
C. x = -1
D. x = -9
Answer: C
Mathematics
You might also like to view...
Find the first three nonzero terms of the Taylor expansion for the given function and value of a.sin x (a = ?)
A. 1 - (x - ?) - 
(x - ?)2 + ...
B. (x - ?) - 
(x - ?)2 + 
(x - ?)3 - ...
C. 1 - 
(x - ?)2 + 
(x - ?)3 - ...
D. -(x - ?) + 
(x - ?)3 - 
(x - ?)5 + ...
Mathematics
Write the following as an algebraic expression in u, u > 0.tan 
A. 5u
B. 
C. 
D. 
Mathematics
Combine the numbers.-2 - (-15) + (-20)
A. -37 B. 3 C. 7 D. -7
Mathematics
Solve.An electrical circuit contains two resistors connected in parallel. If the resistance of each is R1 and R2 ohms, respectively, then their combined resistance R is given the formula R = 
If their combined resistance R is 3 ohms and R2 is 5 ohms, find R1.
A. 2 ohms
B. 
ohm
C. 
ohms
D. 1 ohms
Mathematics