Math 1150: Precalculus, Instructor: Dana Ernst
Solutions to Review for Midterm Exam #1
Here are the solutions to the review.
1. (a) See book
(b) See book.
- (a) See book
(b)
3.
is the set of all points that are
within
r units of the origin.
This is the interval
.
4.
(a)
(b)
(c)
(d) See book
(e)
(f)
5. See book
6.
units
7. See book.
8. See book
9.
10.
11.
12.
13.
14. Draw anything that doesn’t pass vertical line test.
15.
Solving for y, we get
two functions:
.
16.
Any equation that has
in it will do. There are many
correct answers.
17. See book
18. See book
19.
20.
and
21.
22. See book
23.
24. See book
25. See book
26. See book
27. (a) odd
(b) even
(c) neither
28. (a) Down 20
(b) Right 5
(c)
Right 3, Up 1, Squish by
(d) Reflect down, Left 9, Down 2
29.
30.
31.
32.
33.
34.
35.
There are a few correct answers, but here is one possibility:
,
.
36. See book
37. See book
38.
(a)
(b)