Welcome Back I hope you had a great

Welcome Back!!! I hope you had a great Christmas and a wonderful New Years!!! For today’s Bell Ringer, write one goal in each box that you have for 2015 !!!! *I will let you know your new seats in a few minutes.

Anything to Share…. • Does anyone have any exciting stories to share from the Holiday break?

Supplies • These are MY supplies for you to BORROW!!!! ▫ Return all supplies before you leave my class. • Sharpen pencils BEFORE class begins • If you run out of supplies, GET SOME MORE • HOMEWORK – I will be contacting parents a whole lot more to let them know what you are and are not doing/turning in

Time for New Bathroom Passes • Make sure you write your name on these! • Remember: I will give you 1 point bonus on a quiz for every bathroom pass that you keep

What Will We Be Doing in January? ? www. mrskey 8 math. weebly. com

Quiz on Friday over 8. 6 and 8. 7

Starting Fresh…. Section 8. 6 Slope R drive > Key > Jan 6_9 > Slope File > Save As > Math > Jan 6_9 > Slope

New Ideas • Make yourself a Vocabulary Section of your binder. ▫ You may want to add a tab or you may want to use the “Other” Section. • Instead of adding the vocabulary word to your notes, keep a growing list of the vocabulary words in this new “Vocabulary Section”. ▫ This way, when it comes time to study Vocabulary for tests/quizzes, you have all your words and definitions in one place.

For Example: Vocabulary Words *TEST 1 Vocabulary* 1/6/15 • Word – Definition • Word - Definition

Vocabulary • Slope – the ratio of the RISE to the RUN; the ratio of the VERTICAL change to the HORIZONTAL change • Does this sound familiar? ? ?

Notes The slope of a line is always constant. Since slope is a rate of change, it can be positive, negative, or zero.

Example 1 Use Ride and Run to Find Slope

Example 2 Use Ride and Run to Find Slope What is the slope of a wheelchair ramp that rises 2 inches for every horizontal change of 24 inches? Write as a fraction in simplest form.

your Turn Use Ride and Run to Find Slope Arthur is flying a kite in the park. The kite is a horizontal distance of 20 feet from Arthur’s position and a vertical distance of 70 feet. Find the slope of the kite string. Write as a fraction in simplest form. Find the slope of a hill that rises 30 feet for every horizontal change of 1500 feet. Write as a fraction in simplest form.

Example 3 Use a Graph to Find Slope

Example 4 Use a Graph to Find Slope

Your Turn Use a Graph to Find Slope

Example 5 Use a Graph to Find Slope

Example 6 Use a Graph to Find Slope

Your Turn Use a Graph to Find Slope Find the slope of the line that passes through B(2, 7) and C(-3, -2).

Example 7 Zero and Undefined Slopes

Example 8 Zero or Undefined Slopes

Your Turn Zero or Undefined Slopes Find the slope of the line that passes through each pair of points. A. A(-3, 3), B(2, 3) B. P(2, 3), Q(2, -2)

Homework - Slope Section 8. 6 #2 – 20 even

Homework – Slope Section 8. 6 # 2 – 20 even

Homework - Slope Section 8. 6 #2 – 20 even