Find the vertex, focus, and directrix of the parabola.
?
?
A. Vertex:
; Focus: 
; Directrix: 
B. Vertex:
; Focus: 
; Directrix: 
C. Vertex: 
; Focus: 
; Directrix: 
D. Vertex:
; Focus: 
; Directrix: 
E. Vertex:
; Focus: 
; Directrix: 
Answer: A
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Solve the problem.A rectangular playground is to be fenced off and divided in two by another fence parallel to one side of the playground. 528 feet of fencing is used. Find the dimensions of the playground that maximize the total enclosed area.
A. 132 ft by 132 ft B. 88 ft by 132 ft C. 44 ft by 198 ft D. 66 ft by 132 ft
Add or subtract. Express the answer as a mixed number.
A. 7
B. 8
C. 6
D. 7
The graph below shows the percentage of students enrolled in the College of Engineering at State University. Use the graph to answer the question.
Does the graph represent a function?
A. yes B. no
Solve the equation.-6a + 2 + 7a = 12 - 23
A. {13} B. {-37} C. {37} D. {-13}