• 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) Contact Info • Sending me your email address before Friday, 5pm, and you will get you 2.5 points of extra credit. • Subscribing to the Google Group before Friday, 5pm, will get you 2.5 points of extra credit. Math 110: Precalc 1 3 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 4 Exam #1 • This will be on Wednesday, April 18th Math 110: Precalc 1 5 • Today’s Topics – Q+A – Solving Equations using your Graphing Calculator – Quadratic Equations: • • • • Discriminant Solving By Factoring Solving By Completing the Square Solving By the Quad. Formula – Radical Equations: • Strategy for Solving • Equations that are quadratic in form – Absolute Value Equations Math 110: Precalc 1 6 • Reading review for this class: – § 1.2 – Using Your Calculator To Solve Equations – § 1.3 - Quadratic Equations – § 1.5 - Radical and Absolute Value Equations • Reading for next class: – § 2.2 – Functions • Ignore § 2.2.4 (“Operations On Functions”) for now – § 2.3 – Graphs of a Function – § 2.5 - Linear Function & Models Math 110: Precalc 1 7