Find the vertex and axis of symmetry of the parabola.y = -2x2 - 8x - 4
A. (-2, 4); x = -2
B. (-2, -4); x = -2
C. (2, 4); x = 2
D. (0, -4); x = 0
Answer: A
Mathematics
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Provide an appropriate response.A student knows that 
converges. Does 
also necessarily converge?
A. Yes B. No
Mathematics
Solve the system by the addition method, if possible. If a solution exists, give the value of y.
?
?
A. -3 B. 1 C. -1 D. 5 E. no solution
Mathematics
Solve using elimination.
A. x = 
, y = 
; x = ,
, y = - 
;
or (
, 
), (
, - 
)
B. x = 
, y = 
; x = - 
, y = 
; x = ,
, y = - 
; x = - 
, y = - 
or (
, 
), (- 
, 
), (
, - 
), (- 
, - 
)
C. x = 
, y = 
; x = - 
, y = 
; x = ,
, y = - 
; x = - 
, y = - 
or (
, 
), (- 
, 
), (
, - 
), (- 
, - 
)
D. x = - 
, y = 
; x = - 
, y = - 
or (- 
, 
), (- 
, - 
)
Mathematics
Graph the ellipse.
+ 
= 1
A. 
B. 
C. 
D. 
Mathematics