cahier physique - physics workbook

PART 1 : LECTURE

SOLVING BY ADDITION (or elimination ) (3.3)

example1 from book p.259

(1) 2x - 3y =0
(2) - 4x + 3y = -1

solve by addition: add (1) and (2)

example2: from book p.260

(1) 3x + 3y = 15
(2) 2x + 6y = 22

solve by addition

example3: from book p.261

(1) 2x + 3y = 17
(2) 5x + 7y = 29

example4: from book

(1) y + 3x = 5
(2) y + 3x = -2

example5 from book

(1) 3y - 2x = 6
(2) -12y + 8x = -24

PART II - QUIZ

from assignments due today

PART III assignments
p. 266 1, 14, 16, 18, 20
review: p. 336 53, 54, 59, 73, 74
p. 345 8, 12, 16, 20, 21, 31, 32, 40, 52, 52, 53, 63, 65, 67, 68
(go over chapters 4.1, 4.2 to review polynomials)

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