单选题If a line is perpendicular to the line 2x + 6y = 18, what is its slope?A -1/3B 1/3C -3D 3E 1/2

题目

单选题

If a line is perpendicular to the line 2x + 6y = 18, what is its slope?

-1/3

1/3

-3

1/2

相似考题

1.publicclassTest{12.publicvoidfoo(){13.assertfalse;14.assertfalse;15.}16.publicvoidbar(){17.while(true){18.assertfalse;19.}20.assertfalse;21.}22.}Whatcausescompilationtofail?()A.Line13B.Line14C.Line18D.Line20

2.Given:WhichlineofcodemarkstheearliestpointthatanobjectreferencedbyintObjbecomesacandidatefor garbagecollection?()A.Line16B.Line17C.Line18D.Line19

3.The primary line module has failed and the spare line module is nowactive.What occurs,by default,when the primary line module returns to an operational status?()A.The primary line module is inactive for five minutes and then becomes active.B.The primary line module is in standby mode，while the spare line module remains active.C.The primary line module becomes active immediately and the spare line module becomes inactive.D.The primary and spare line modules are active for five minutes，after which time the spare line module becomes inactive.

4.Click the Exhibit button.Given:What is the result?()A.Line 26 prints "a" to System.out.B.Line 26 prints "b" to System.out.C.An exception is thrown at line 26 at runtime.D.Compilation of class A will fail due to an error in line 6.

更多“If a line is perpendicular to the line 2x + 6y = 18, what is”相关问题

第1题：

What provides little or no indication that a vessel is dragging anchor ________．
A.Increasing radar range to a fixed object ahead
B.Drift lead with the line leading perpendicular to the centerline
C.Vibrations felt by placing a hand on the cable
D.Changing bearings to distant fixed objects abeam

正确答案：B
第2题：

Cyclones tend to move ______.
A.perpendicular to the isobars in their warm sectors
B.parallel to the isobars in their warm sectors
C.parallel to the line of the cold front
D.perpendicular to the line of the cold front

正确答案：B
气旋趋向平行于暖区的等压线移动。
第3题：

11. public class Test { 12. public void foo（） { 13. assert false； 14. assert false； 15. } 16. public void bar（）{ 17. while（true）{ 18. assert false； 19. } 20. assert false； 21. } 22. } What causes compilation to fail？（）
- A、 Line 13
- B、 Line 14
- C、 Line 18
- D、 Line 20
正确答案:D
第4题：

单选题
What term indicates the line drawn at the top of the flat plate keel（）.
A
Base line
B
Molded line
C
Designer's waterline
D
Keel line

正确答案： A
解析：暂无解析
第5题：

单选题
A plane perpendicular to the polar axis will never form what line on the Earth’s surface? （）
A
Great circle
B
Equator
C
Small circle
D
Meridian

正确答案： C
解析：暂无解析
第6题：

填空题
What line of products is Amway engaged in?____.

正确答案： Daily necessities
解析：
从文章的第一段第一句话“Amway is a leading international company engaged in daily necessities”可知。
第7题：

单选题
The equator is（）.
A
the primary great circle of the Earth perpendicular to the axis
B
the line to which all celestial observations are reduced
C
the line from which a celestial body's altitude is measured
D
All of the above

正确答案： B
解析：暂无解析
第8题：

单选题
What provides little or no indication that a vessel is dragging anchor? （）
A
Increasing radar range to a fixed object ahead
B
Drift lead with the line leading perpendicular to the centerline
C
Vibrations felt by placing a hand on the cable
D
Changing bearings to distant fixed objects abeam

正确答案： B
解析：暂无解析
第9题：

单选题
Given： What is the result？（）
A
Compilation fails due to an error in line 23.
B
Compilation fails due to an error in line 29.
C
A ClassCastException occurs in line 29.
D
A ClassCastException occurs in line 31.
E
The value of all four objects prints in natural order.

正确答案： B
解析：暂无解析
第10题：

单选题
A “spring line” is（）.
A
any wire rope used for mooring
B
a fire-warp
C
a mooring line running diagonally to the keel
D
a mooring line perpendicular to the keel

正确答案： B
解析：暂无解析
第11题：

单选题
What is normally used to pass a mooring line to a dock?（）
A
Distance line
B
Gantline
C
Heaving line
D
Tag line

正确答案： C
解析：暂无解析
第12题：

单选题
A drift lead indicates that the vessel is dragging anchor when the line is（）.
A
taut and leading forward
B
slack
C
leading out perpendicular to the centerline
D
leading under the hull

正确答案： A
解析：暂无解析
第13题：

When carrying out a parallel track search pattern，the course of the search units should normally be which of the following ________．
A.In the same direction as the anticipated drift
B.In the opposite direction of the anticipated drift
C.Perpendicular to the line of anticipated drift
D.Downwind

正确答案：A
第14题：

What is the difference between a CSU/DSU and a modem?（）
- A、A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line.
- B、A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased line.
- C、A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone line.
- D、A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line.
正确答案:D
第15题：

多选题
Which of the following equations are for lines which are perpendicular to the line y=2x+4?
A
2y +x = 5
B
2y –x = 3
C
x + 2y = 7
D
x – 2y = 4
E
4y +2x = 0

正确答案： C,B
解析：
直线y=2x+4的斜率为2，所以与其垂直的直线的斜率为-1/2，故本题选择ACE三项。
第16题：

单选题
You are handling a mooring line and are instructed to Check the line.What should you do（）.
A
Ensure the bight is not fouled by taking up slack
B
Pay out the line smartly and keep it free for running
C
Secure the line by adding more turns
D
Surge the line so it maintains a strain without parting

正确答案： A
解析：暂无解析
第17题：

单选题
Line l passes through the origin and is perpendicular to the line given by the equation 2x + y = 8. Which of the following points is NOT on line l?
A
(-4, -2)
B
(-1,1)
C
(2,1)
D
(4,2)
E
(7,3.5)

正确答案： B
解析：
2x+y=8，所以y =-2x + 8，因为函数是斜截式且斜率为-2。垂直于x-y平面的的直线的斜率互为反倒数。所以斜率Line1的斜率为1/2，又因为Line l经过原点且与y =-2x + 8垂直。所以Line 1为y =(1/2)x。以上四个选项中可知只有B点在Line l上。
第18题：

单选题
Click the Exhibit button. What is the result？（）
A
Line 26 prints "a" to System.out.
B
Line 26 prints "b" to System.out.
C
An exception is thrown at line 26 at runtime.
D
Compilation of class A will fail due to an error in line 6.

正确答案： C
解析：暂无解析
第19题：

单选题
The primary line module has failed and the spare line module is nowactive.What occurs，by default，when the primary line module returns to an operational status？（）
A
The primary line module is inactive for five minutes and then becomes active.
B
The primary line module is in standby mode，while the spare line module remains active.
C
The primary line module becomes active immediately and the spare line module becomes inactive.
D
The primary and spare line modules are active for five minutes，after which time the spare line module becomes inactive.

正确答案： A
解析：暂无解析
第20题：

单选题
Given： Which line of code marks the earliest point that an object referenced by intObj becomes a candidate for garbage collection？（）
A
Line 16
B
Line 17
C
Line 18
D
Line 19

正确答案： D
解析：暂无解析
第21题：

单选题
11. public class Test { 12. public void foo（） { 13. assert false； 14. assert false； 15. } 16. public void bar（）{ 17. while（true）{ 18. assert false； 19. } 20. assert false； 21. } 22. } What causes compilation to fail？（）
A
Line 13
B
Line 14
C
Line 18
D
Line 20

正确答案： C
解析：暂无解析
第22题：

单选题
What is the result？（）
A
Compilation of class A fails.
B
Line 28 prints the value 3 to System.out.
C
Line 28 prints the value 1 to System.out.
D
A runtime error occurs when line 25 executes.
E
Compilation fails because of an error on line 28.

正确答案： E
解析：暂无解析
第23题：

单选题
Given： What is the result？（）
A
B
B
The code runs with no output.
C
Compilation fails because of an error in line 12.
D
Compilation fails because of an error in line 15.
E
Compilation fails because of an error in line 18.

正确答案： A
解析：暂无解析

单选题If a line is perpendicular to the line 2x + 6y = 18, what is its slope?A -1/3B 1/3C -3D 3E 1/2

题目

相似考题

更多“If a line is perpendicular to the line 2x + 6y = 18, what is”相关问题

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