HW Week 19 - March 5/6

Improved PDF of HW Checklist HERE - This checklist doesn’t have the duplicates on it and it better organized.

Note: All of the graphing linear equations material is a preview of Algebra 1. You will see this again your algebra class. Your algebra teacher will think you are brilliant because it comes so easily to you. Don’t sweat it if you aren’t perfect at this yet.

HW Part 1 of 4

• McD 8.5 y= mx +b Slope-intercept form (Day 1 of HW on this material)

  • Watch and add to your class notes How to graph a line when you have an equation in y = mx + b or slope-intercept form. WATCH this video.

  • Watch and answer these questions in your notes: what is the slope of a horizontal line? what is the slope of a perpendicular line? Richard walks us through positive and negative slopes, slope of a horizontal line is zero (y=some number), vertical line has an undefined slope, steepness of slope, what does a line with a slope of 1 look like? (10 minutes) https://www.youtube.com/watch?v=Nl0AAmARm18

  • Reread pg. 412-414.

  • Go to Desmos’ graphing calculator. Type in these equations of lines

    • y = .25x we could also write this as a fraction (1/4)x

    • y = .5x we could also write this as a fraction (1/2)x

    • y = 1x

    • y= 2x

    • y=10 x

    • What is happening to the steepness of the line as the coefficient in front of x changes? This coefficient is called m and m represents the slope.

    • Now make that coeffienct negative (-.25, -.5, -1, etc) What happens now? Write a rule for what happens.

    • Did you notice that all of these lines pass through 0, 0?

    • Now clear your graph and you’re going to leave the m value alone (the coefficient in front of x). And just add something to the end of the equation. The value at the end of the equation is called “b” See if you can figure out as you change b, what that does to the line.

    • y = 2x +0

    • y = 2x + 1

    • y= 2x + -3

    • y = 2x + 6

    • The number at the end is represented by the letter “b” What does it do to the the line? If the other name for “m” is slope, what do you think the other name for “b” is based on your observations?

  • Do pg. 413-5 check points 1-6 all, GP &PP #1-13 odds, 38, 40. (Checkpoint and even answers: same slope means parallel lines, 4. slope =m=-3, y-intercept or b=4. 6. slope of a parallel line will be the same, so 1. slope of a perpendicular line will be the negative reciprocal so -1/1 or just -1. 38. 10. 40. 60

HW Part 2 of 4

• McD 8.4 Slope of a Line (Day 2 of HW on this material)

  • Do pg. 405 checkpoints 1, 3, 5, 7 GP# 7, 11 -17 odds, 45, 46 (Check points (1. m= 5/3, 3. m = -3, 5. 1; positive, 7. 0; zero. Evens: 46. GCF is 8)

  • Optional Videos:

    • Equation of a line, slope intercept form, functions, perpendicular lines & horizontal lines Math Antics Basics of Linear Functions

    • Math Antics Slope and Distance of a line (slope = RISE / RUN or change in y over change in x or )

• Reviewing chp 6: To review chapter 6 material,

  • watch and take notes on this review of probability concepts all in one video from Magic of Math

  • VIDEO REVIEW of 6.1 Unit conversion - Take notes: Review unit conversion (dimensional analysis) watch Mario’s video

HW Part 3 of 4

Chp 6.8 The Counting Principle - NEW -

• Optional Support Video on the Counting Principle from Front Porch Math

• Optional Video if you need more examples: Counting Principle from Mario Math Tutoring

Graphs of Linear Equations: Do the Desmos Activity “Parallel Lines” in our Desmos classroom

PREVIEW of 11.9 Independent and Dependent Events Probability— choose one probability. How is figuring out DEPENDENT events’ probability different from independent events?

• 4 minute Video from Joann’s School - Dependent vs. Independent Compound events

• Compound Probability both independent and dependent events with Organic Chemistry tutor (the dependent event part is at the very end)

REVIEW Percent of Change with Mario Watch this video and take notes

HW Part 4 of 4

Continue reviewing Chp 6 Test in two weeks. Go to the Chp 6 Review on pages 318-321. This week’s weeks assigned problems are: pg. 318-319 #7-21 odds, 22, 23, 25 evens are HERE

Correct work, redo missed problems as usual. Highlight problems on your HW sheet which you want to review in class and staple that to your homework. Also attach your self-assessment sheet and self-assess. Note: you do not need to tear out your notes if you’re taking notes in a spiral notebook.