• When you first arrive in class:
– If you have any questions about the homework
please put the question #’s on the board
• If someone has already put your question # up, and
you’d like to see an explanation, please put a check
mark next to the problem
• The idea being that problems that lots of people are
finding difficult will be clearly marked
• We’ll start with ≤ 10 minutes of Q+A
Math 110: Precalc 1
1
Math 110:
Pre-Calculus 1
Instructor: Mike Panitz
(mpanitz@cascadia.ctc.edu)
Exam #1
• This will be on Wednesday, April 18th
– This is 1 week from today
• Exam will take 1 – 1.5 hours
– You will have the entire class period for the
exam
– You’re welcome to take more time, but we’ll
have to move to a different room @ 3:20pm
Math 110: Precalc 1
3
Exam #1: Grading
• Grading will be more detail-oriented than on the
homeworks
• Probably about 10 questions, ~10 points/question
– For all questions, ONE POINT for the correct answer
– Remainder for SHOWING YOUR WORK and for
CHECKING YOUR WORK
• Checking (where possible) will be required, and worth points
• I’ll try to make it clear on the exam which questions you
HAVE to check your work on
– You will need to write out any formulas, before you use
them.
Math 110: Precalc 1
4
Calculators on Exams
• You’re allowed/encouraged to use your
graphing calculators on the exams
• ALL MEMORY WILL BE CLEARED!!
– So any programs that you’ve loaded into it will
be removed.
– This will be done immediately before each
exam
Math 110: Precalc 1
5
Exam #1:Weekend Study Tips
• Go through, and make sure you can answer, step by step,
and explain, every question from the In-Class Exercises,
homeworks, and book examples on the topics
• Make sure that every you can fully answer every single
TYPE of question
– Not just ‘equations with radicals’, but
– Equations with 1 radical (
– Equations w/ 2 radicals (
– Etc.
x  1  10 )
2x  3  x 1  1 )
Math 110: Precalc 1
6
• Today’s Topics
– Q+A
– Identifying Functions
• Pictures, Ordered Pairs, Equations
– Functions: Domain, Range
• From equations / function notation
• From graph
– Vertical Line test
– Review Linear Equations
– Scatter Diagrams
• Linear vs. nonlinear relations
– Finding the line of best fit (with a TI-83)
Math 110: Precalc 1
7
• Reading review for this class:
– § 2.2 – Functions
– § 2.3 – Graphs of a Function
– § 2.5 - Linear Function & Models
• Reading for next class:
– § 3.1 – Quadratic Function & Models
– Exam Review
Math 110: Precalc 1
8