136 industry: oral answer (1): (-4, root number 2). (2): (Number of paid radicals is 3,-1). (3): (0, root number 2).

(4)(-X，0)

A(0，4) A 1(0，-4) A2(0，4)

B2(-3，5) B3(3，5)

C(-4， 1) C 1(-4，- 1) C2(4， 1)

137 A: 1。 P(4，-3)2。 Q (negative root number 3,) 3. M(0, radical number 2) 4. (-x，-y) 5。 The first quadrant 6. Auxiliary axle.

A(-4，- 1 )B(-2，-5) C(0，-3)

A 1(4， 1)B 1(2，5)C 1(0，3)

(1) C and B (2) B and A (3) A and C (4) D are shifted downward by 6 units.