HW Week 17 — February 13/14

HW Part 1 of 4

Work your multiplication mastery plan. Remember to have your parents sign it on Monday verifying that you studied 5 days a week.

Correct your fall semester final exam using the SOLUTIONS HERE for Fall Semester Final

McD 8.1 When is a relation a function? pg. 388-390 Do PP# 9, 15, 22, 35, 37, SQUARE 23 & 24 PENTAGON skip #9 and do 37 instead

even answers: 24a) increase; decrease, 24b) Domain represents the ltitue in feet of th skydiver during the jump, and inclues the values from 0 to 12,000. While the range represents the air pressure the skydiver experiences during the jump in pounds per square foot and includes the values from 1350-2125. 24c) Yes the relation is a function because for any altitude (input) there is exactly one air pressure (output). AND the graph passes the vertical line test (this is the easiest way to see if a relation is a function) 24d) about 1900 feet

McD 8.2 Linear Equations in two variables

• Re-read pages 319-393 — this is a lot of information to take in at once!

• Watch these two videos and take notes (your notes are part of your homework)

  • Graphing on a Coordinate Plane Math Antics Video about Graphing on a Coordinate Plane

  • Does a given ordered pair represent a solution to this linear equation? (Math 8 Section 2.1) Is a given ordered pair a solution of a linear equation?

HW Part 2 of 4

even answers to p. 315-6 2)With each of the three rolls, there are six possible outcomes, so the total number of possible outcomes by the counting principle is 6x6x6 =216. 8) 18 divisions, 10) sample answer Using the counting principle, the student should multiply the possiblities, not add them, so the possible number of outfits is 3x3=9

VIDEO REVIEW: Watch and take notes How to use the percent equation a = p % of b with Mario. Pause video and try to do the problem before he shows you how.

McD 8.2 Linear Equations in two variables…

• Watch this video and take notes (your notes are part of your homework) Math Antics Slope and Distance of a line (slope = RISE / RUN or change in y over change in x or )

• Do these checkpoints for the examples: pg 391 #1, 2, pg 392 #7, 8, 10. (2. yes, 8.— I’ll show you this graph and check point 10 in class the next time we meet for class, 10. y = 2/3x -1)

• Then after reading example 4, go to https://www.desmos.com/calculator .

  • Type in these equations of a line: y = 2 and y = -3, what kinds of lines are these?

  • Now also on Desmos, make a graphs of the line x =2, and x = -3. What kinds of lines are these?

  • Type in an equation in the form y=mx+b. Try different numbers for m. Then try different numbers for b. What happens? How do you make the line steeper? How do you make it shallower

McD 6.6 & 6.8 The Counting Principle- Tree Diagrams

• McD 6.8 The Counting Principle- Tree Diagrams

  • Video resources: Watch a Compound Events Tree Diagram with Organic Chemistry Tutor

  • Do pg 315-6 #1, 2, 8, 10, 11 (even answers: above. Try them first before looking at the answers

HW Part 3 of 4:

• McD 9.2 Square Roots— instead of using decimals, use simplest radical form (leave the non-perfect square part under the radical sign and pull out the perfect squares)

  1. Re-read 9.2 pages 458-459

  2. Download and print this handout “Square Roots in Simplest Radical Form” (9 problems total. Answer key is on the second page. Remember to show your work.)

  3. SQUARE Watch Richard from AoPs Square Root of a PRODUCT (this only works for multiplication of square roots!)

HW Part 4 of 4

• 10 minutes studying for the multiplication quiz. Mark off that you studied on your weekly record sheet

• McD 9.3 Pythagorean Theorem Problems - Do pg 467-468 #9, 11, 14, 20, 22, 42 SQUARE#44 PENTAGON #35 even answers: #14 yes, 20. hint remember the concrete slab example? Please remind me to discuss this in class. 42. 24 meals, 44. explain how you use the Pythagorean theorem to solve this.

• Study using your flash cards for perfect squares for 1-15 (1 x 1 = 1, 2 x 2 =4, 3 x 3 = 9 etc). Study for a test on those as well as a multiplication test.

• REVIEW percents by taking notes on these two videos:

  • Percent proportion video from Mario

  • Percent equation from Mario (slightly different than his video you watch for part 2)

Correct work, redo missed problems as usual. Highlight problems on your HW sheet which you want to review in class. Make sure you fill out your self-assessment AT HOME so you can turn in your homework promptly the moment class starts or before.