Evaluate f(x) at the given value of x.f(x) = 
x + 
; x = 3
A. 
B. 
C. 
D. 8
Answer: B
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Express the relationship between a small change in x and the corresponding change in y in the form 
.f(x) = x
A. dy = 
dx
B. dy = 
dx
C. dy = 
dx
D. dy = 
dx
On average, 
of a teenager's day is spent at school or sleeping. If
is spent sleeping, what fraction is spent in school?
A. 
of their day
B. 
of their day
C. 
of their day
D. 
of their day
Find the center, foci, and vertices of the ellipse.
+ 
= 1
A. center at (-1, 2)
foci at (-1 + 2
, 2), (-1 - 2
, 2)
vertices at (-7, 2), (5, 2)
B. center at (-1, 2)
foci at (-1 + 2
, -1), (-1 - 2, -1)
vertices at (6, 2), (-6, 2)
C. center at (-1, 2)
foci at (- 2, 2), (2
, 2)
vertices at (6, 2), (-6, 2)
D. center at (2, -1)
foci at (2 + 2
, -1), (2 - 2
, -1)
vertices at (-7, 2), (5, 2)
The graph of a function is given. Find the indicated function value.f(0)
A. 2.1 B. 1 C. 4 D. -1.34