Pre-Calculus

1

• Pre-Calculus
• August 30th

Help each other on HW questions!
2
Study for quiz 2

• Be able to
• Evaluate a graph for a specific x-value.
• Determine if a graph is even/odd or neither.
• Determine intervals regarding domain, range,
  increasing, decreasing, constant, inflection
  point, symmetry, minimum, maximum, concavity,
  continuous, discontinuous, intercepts.
• Prove algebraically for even/odd symmetry.

3

• GREATEST INTEGER FUNCTION
• f(x) x

The GIF is like the bill for your cell phone in
reverse. If you talk for 3 ½ minutes you get
charged for 4 minutes. This rounds UP. The
GIF rounds DOWN!
4
Start with a dark circle on the origin. The dark
horizontal line is 1 unit long. It has an open
circle on the right.
5
evaluatingGREATEST INTEGER FUNCTION

• If the number is an integer, use that integer.
  5 5 -3 -3
• If the number is not an integer, use the next
  smaller integer.
• 1.2 1 -3.6 -4
• SLIDE LEFT ON THE NUMBER LINE!

6

• End Behavior refers to the y-value
• Where the function is approaching at
• infinity
• As the x gets bigger
• and bigger, the y value
• is doing what?

7

• End Behavior VERBALLY
• As x approaches
• f(x) increases without
• bound.
• As x approaches
• f(x) decreases without
• bound.

8

• Limit Notation also used to show end behavior
• Or use this if both go in the same direction.

9
END BEHAVIOR

• In your function book, do the end behavior
  section now.
• Next fill in the last page, GIF.

10
HOMEWORK

• WORK ON YOUR FACTORING PACKET and finish up all
  parts of the function book ?