Math
23
3A
Homework #12
Chapter 3.2; Functions
1. Use the vertical line
test
to
determine
whether
each
relation is a function, and if so,
estimate
the
domain,
range,
and/(0);
if not a function
state
n/a.
(a) (b)
b
A
-a-
Function? Function?
(c)
\
\
Function?
Domain:
Range:
Domain:
Range:
.AO)
= -(X /(O) =
Domain:
'00<X.<CC
Range:
-QD<X<cc
m
3. The function V{N) = 18500 -1500// predicts the value
purchase.
a.
Find
F(0)... What
does
this
tell
us?
Name
2.
Simplify
the function using each indicated
value:
x'-9
a. Find/(0).
1
b.
Find/(-2).
c. Find/(-3).
d.
Find/(a)
!,
V{N), in dollars, of a car
years
after
the
b.
Find
F(20)... What
does
this
make
sense?
Why? rKt^:>oV
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