Thursday HW/Quiz Tomorrow!

You have a few things to consider tonight....

1.) Quiz on quadratics (section 2.1) tomorrow!

• First question: given an equation, find the x-intercepts, y-intercept and vertex
• Second question: an application problem--study the baseball problem on the back of our weekend homework (#3) or on the back of the homework answer key I gave you!

2.) Please complete the end behavior "book problems" in our packet if you didn't show me those today!

• Use the notes I sent out through remind OR take a look at page 141-142 of the online textbook for notes about the leading coefficient test!
• Page 149 (our front page, page 149 in the online textbook): #13, 15, 17, 19, 21
• **When you check your answers in the back you will see the end behavior written in words--your answer should not be written this way, but instead should be written using the "limit notation" we discussed in class....Use the key below to help you check your work!

• Falls left: x--> - (infinity), f(x)--> - (infinity)
• Falls right: x--> + (infinity), f(x)--> - (infinity)
• Rises left: x--> - (infinity), f(x)--> + (infinity)
• Rises right: x--> -+(infinity), f(x)--> + (infinity)
• Remember, with this notation, the "left/right" is what we show with our "x" (because the x axis runs left to right); if x is approaching negative infinity we're talking left, if x is approaching positive infinity we're talking right! 

• And for the falls/rises, we're showing "f(x)" or "y" (because the y-axis runs vertically, or down and up); if f(x) is approaching negative infinity, the graph is falling, and if f(x) is approaching positive infinity, the graph is rising.

3.) This weekend we will have some homework about "finding zeros of polynomials!" We'll get more into this in class tomorrow, but if you'd like to get a head start, here is the weekend homework:

• **Ignore the textbook directions--for each of these problems I want you to find the zeros**
• Page 149: 27, 29, 35, 41, 75, 77, 79
• For 27 to 41 and 75 you will need to try to use different types of factoring!
• The problems in 77 and 79 are already factored, you just need to find the zeros (x intercepts)!
• Check your answers in the back of the book!