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P33~34 answers in the next semester of Grade 8 (experimental version)
1.5 16 6 3

2.( 1)m is not equal to 0

M not =3

(2)m+3 is not equal to 0.

M not =-3

3.y=k(x-2)

1=k(- 1-2)

0 in k = 65438+3.

4.y=kx+b

-3k+b=-6

3k+b=-2

K = 2/3

b=-4

Y = k = 3k = 2x-3 4.

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