**1.****
**Question Details
StitzCA3 1.4.062. [3114682] –

Find the (implied) domain of the function. (Enter your answer using interval notation.)

*w* − 2

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Order Paper Now*u*(*w*) = 5 − *w*

**2.****
**Question Details
StitzCA3 2.1.029. [1848968] –

Carl can stuff
6
envelopes per *minute*. Find
a linear
function *E *that represents the total
number of envelopes Carl can stuff
after *t hours*, assuming he
doesn’t take any breaks.

*E*(*t*) = , *t *≥
0

**3.****
**Question Details
StitzCA3 2.2.025.part5. [3116225] –

Consider the following function.

*f*(*x*) =
−4|*x*|

From the graph, list the intervals on which the function is increasing, decreasing, or constant. (Enter your answers using interval notation. If the answer cannot be expressed as an interval, enter EMPTY or ∅.)

increasing

decreasing

constant

**4.****
**Question Details
StitzCA3 1.6.023. [1847380] –

Analytically determine if the following function is even, odd or neither.

*f*(*x*) = 6 even

odd

both even and
odd neither

**5.****
**Question Details
StitzCA3 2.5.005. [1849003] –

On New Year’s Day, I (Jeff) started weighing myself every morning in order to have an interesting data set for this section of the book. (The professionals in the field of weight management strongly discourage weighing yourself every day. When you focus on the number and not overall health, you tend to lose sight of your objectives. I was making a noble sacrifice for science, but you should not try this at home.) The whole chart would be too big to put into the book neatly, so I’ve decided to give only a small portion of the data to you. This then becomes a Civics lesson in honesty, as you shall soon see. There are two charts given below. One has my weight for the first eight Thursdays of the year (January 1, 2009 was a Thursday and we’ll count it as Day 1.) and the other has my weight for the first 10 Saturdays of the year.

Day
# *x*

(Thursday) 1 8 15 22 29 36 43 50

My
weight *y*

in pounds 238.2 237.0 235.6 234.4 233.0 233.8 232.8 232.0

Day
# *x*

(Saturday) 3 10 17 24 31 38 45 52 59 66

My
weight *y*

in pounds 238.4 235.8 235.0 234.2 236.2 236.2 235.2 233.2 236.8 238.2

(a) Find
the least
squares line for the Thursday
data. (Round
the slope
and the
*y*-intercept to
two decimal
places.)

*y*(*x*) =

Is it a good fit?

Yes

No

(b)
Find the
least squares
line for
the Saturday
data. (Round
the slope
to six
decimal places and the *y*–

intercept to two decimal places.)

*y*(*x*) =

Is it a good fit?

Yes

No

(c) Use Quadratic
Regression to find a parabola
which models
the Saturday
data. (Round
your answer
for the *x*2 coefficient
to three
decimal places and your answers
for the
*x
*coefficient and constant term to
two

decimal places.)

*y*(*x*) =

Is it a good fit?

Yes

No

**6.****
**Question Details
StitzCA3 1.7.041. [1849356] –

The complete graph of

*a*(*x*) =
*f*(*x*+
1)

*y** *=
*f*(*x*)

is given below.
Use it
to graph
the following
function.

Page 3
of 5

**7.****
**Question Details
StitzCA3 1.1.026.cap. [1848694] –

Consider the following pair
of points.

23 , 2

, − 22 , − 13

5 5 5 5

**Part**** 1 – Distance**

Find
the distance
*d
*between the two points.

*d** *=

**Part**** 2 – Midpoint**

Find
the midpoint
*M
*of the line segment connecting
the two
points.

*M*(*x*, *y*)
=