Find the exact value of 
without using a calculator.
A) 1.25
B) 5
C) 2
D) 3
E) 2.5
C) 2
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Write an equation of the line.
A. y = x + 7 B. y = 7x C. y = 7 D. x = 7
Find the standard form of the equation of the ellipse and give the location of its foci.
Center at (-1, 1)
A. 
+ 
= 1
foci at (-1 + 3
, 1) and (-1 - 3
, 1)
B. 
+ 
= 1
foci at (- 3
, 1) and (3
, 1)
C. 
+ 
= 1
foci at (-1 + 3
, -1) and (-1 - 3
, -1)
D. 
+ 
= 1
foci at (1 + 3
, -1) and (1 - 3
, -1)
Add and subtract as indicated. Simplify and leave the numerator and denominator in your answer in factored form.
+ 
- 
A. 
B. 
C. 
D. 
Use the relation's graph to determine its domain and range.
- 
= 1 
A. Domain: (-?, ?) Range: (-?, -2) or (2, ?) B. Domain: (-?, -2] or [2, ?) Range: (-?, ?) C. Domain: (-?, -2] and [2, ?) Range: (-?, ?) D. Domain: (-?, ?) Range: (-?, ?)