Find the vertex, focus, and directrix of the parabola.x = 2y2
A. Vertex: V(0, 0); focus: F
; directrix: x = - 
B. Vertex: V(0, 0); focus: F
; directrix: x = - 
C. Vertex: V(0, 0); focus: F
; directrix: x = 
D. Vertex: V(0, 0); focus: F
; directrix: y = - 
Answer: B
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What will be an ideal response?
Use the graph of the given one-to-one function to sketch the graph of the inverse function. For convenience, the graph of y = x is also given.
A. 
B. 
C. 
D. 
Determine the real solutions to the system of nonlinear equations.x2 + y2 = 61x - y = 1
A. (5, -6), (6, -5) B. (5, 6), (6, 5) C. (-5, 6), (-6, 5) D. (-5, -6), (6, 5)
Find the ratio of the corresponding sides of the given similar triangles. Write the ratio in simplest form.
A. 
B. 
C. 
D. 