Graph the parabola.f(x) = 2x2 + 2x - 1

A.

B.

C.

D.


Answer: D

Mathematics

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Find the extreme values of the function subject to the given constraint.  

A. Minimum: 4 at (0, ±1); maximum: 7 at (±1, 0) B. Minimum: 4 at (0, ±1); maximum: 0 at (0, 0) C. Minimum: 4 at (±1, 0); maximum: 7 at (0, ±1) D. Minimum: 4 at (±1, 0); maximum: 0 at (0, 0)

Mathematics

Find the phase shift of the function.y = 2 cos 

A. 2 units down
B.  units to the right
C. 2 units up
D.  units to the left

Mathematics

Solve the equation for all values 0 ? x ? 2?.2 sin 4x = 3

A. x = 0, , ?
B. x = 
C. x = 0
D. x = 

Mathematics

The figure shows some faces from the "Guess Who?" game. Decide whether the statement is true or false. ? There are three faces that have glasses. ? ?

A. True B. False

Mathematics