題庫堂
檢索
題庫堂
首頁
數學
英文學習
政治學
統計學
經濟學
藥理學
中醫藥物學
財政學
法學知識
公共行政
警察學
BI規劃師
財務管理
公共衛生學
工程經濟學
電力電子學
當前位置:
首頁
5.設 、 為坐標平面上任四點,且 ,試求k值(A)k=-2 (B)k=3 (C)k=-9 (D)k=5
問題詳情
5.設
、
為坐標平面上任四點,且
,試求k值
(A)k=-2
(B)k=3
(C)k=-9
(D)k=5
參考答案
答案:D
難度:
計算中
-1
書單:
沒有書單,新增
用户評論
【用戶】
Jiunndar Yeh
【年級】幼稚園下
【評論內容】當兩線段互相垂直時,兩線段之斜率相乘= -1...
【用戶】
Jiunndar Yeh
【年級】幼兒園下
【評論內容】當兩線段互相垂直時,兩線段之斜率相乘= -1...
上一篇 :
4.若連接 , 兩點所成直線的斜率為-4 ,試求k值(A) (B) (C) (D) 。
下一篇 :
6.試求x截距是5,y 截距是-4的直線方程式(A)7x-16y-30=0 (B)4x-5y-20=0 (C) 12x-3y-16=0(D)-x-8y+6=0 。
資訊推薦
7.若 為坐標平面上之兩點,試求通過線段 之中點,且與直線2x+5y-2=0垂直的直線方程式(A)5x-2y+16=0 (B)3x-4y+18=0 (C)7x+5y+19=0 (D)3x-
8.設 的圖形是通過點 的直線,試求 之值(A)-2 (B) -1(C) 2(D)-3
9.設二次函數 在x=1時,有最大值2,且 ,試求 之值(A)-2 (B)1 (C)2 (D) -3。
2. This is an _____. (A) small egg (B) big apple (C) old car (D) new pencil
3. A: Tom, _____you a student? B: Yes, I_____ . (A) is ; are (B) is ; am (C) are ; is (D) are ; am
4. Mrs. Wang is_____ mother.(A) Alice and Kelly (B) Alice’s and Kelly (C) Alice’s and Kelly’s (D) Al
5. A: Isn’t the boy your cousin? B: Yes,_____.(A) he’s not my cousin (B) he’s my aunt’s son (C) he’s
6. A: How is your father, Kevin? B:_____(A) He’s very well, thank you. (B) I’m fine. Thank you. (C)
7. Brenda is_____ . (A) one years old (B) one year (C) an one-year-old girl (D) one
8. A: Is that_____? B: No, he isn’t.(A) short boy (B) boy short (C) boy a short (D) short a boy
9. A: I’m sixteen._____ B: I’m fourteen.(A) And you? (B) How are you doing? (C) Who are you? (D) Are
10. My dad is a doctor, _____ .(A) My mom is, too (B) my mom is, too (C) and my mom, too (D) and my
【題組】2. David is _____ cousin.(A) Peter’s (B) Linda’s (C) Bill’s (D) May’s
【題組】3. Is Lisa Susan’s grandmother?(A) Yes, she is her grandmother.(B) No, she’s her aunt.(C) Yes, s
2.The stranger at the party didn’t look . However, his voice sounded like .(A)friend; my fr
3.If you don’t travelling far, Kenting is a good choice for you.(A)want (B)would like (C)f
4.Although the stone soup is , I still need some tomatoes.(A)enough good (B)enough well (C
5.Won’t that wonderful to take a picture with the superstar? (A)be (B)is (C)sounding (D)so
6.Let’s enjoy the crispy fries before they cold.(A)smell (B)sound (C)get (D)look
7.The train is approaching. If we , we may be able to catch it.(A)hurry (B)in a hurry (C)do
8.Ann just moved to Tainan. She thinks that it’s impossible to have long and friendship wi
9.Which sentence is Not right?(A)Do you in love with someone?(B)I have strong feelings for someone.(
10.Which sentence is correct?(A)How come can you speak English so well?(B)If the conductor comes to
【題組】2.(A) I(B) me(C) my(D) mine
【題組】3.(A)interested (B) surprised(C) scary(D) afraid