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1.試求通過下列各組點的直線斜率
(1) (2,-2)，(4,-2) (2) (2,-2)，(4,0) (3) (2,-2)，(0,4)

2.設A(k,3)，B(2,5)，若直線AB之斜率為1，則K= (A)0 (B)1 (C)2 (D)3。

3.一直線通過(2,a)與(1-a,3)兩點，且斜率為2，試求a之值。

4.設A(2,3)，B(-1,6)，則直線AB之斜角為
(A)4分之拍R (B)3分之拍R (C)3分之2拍R (D)4分之3拍R

5.設直線L過A(4,3)，B(6,5)兩點，試求L之斜角。

6.設直線L通過(0,-3)，(1,√3-3)兩點，試求L之斜角。

7.已知直線L通過A(√3,-3)，B(2√3,-2)兩點，試求直線L之斜率及斜角。

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