In this task, you are required to write a program that represents 2D Lines in the cartesian space. The program consists of three files: the header file (Line. h), the class file (Line. cpp) and the test file (Main. cpp). You are only required to complete the code in Line. cpp file. We already wrote the other two files. To understand what you need to do, read the codes in below. Sample Testcase 0:

Input:

-1 3 -3 9 1

Output:

Start point: (-1,3)
End point: (-3,9)
Slope = -3
Is line horizontal? no
Is line vertical? no
Does the line or its extension pass through the origin? yes
New end point after mirroring wrt x-axis: (-3,-3)

Sample Testcase 1:

Input:

2.5 4.5 3.5 4.5 1

Output:

Start point: (2.5,4.5)
End point: (3.5,4.5)
Slope = 0
Is the line horizontal? yes
Is the line vertical? no
Does the line or its extension pass through the origin? no
New end point after mirroring wrt x-axis: (3.5,4.5)

Sample Testcase 2:

Input:

7.2 3.1 22 12.6 -1

Output:

Start point: (7.2,3.1)
End point: (22,12.6)
Slope = 0.641892
Is the line horizontal? no
Is the line vertical? no
Does the line or its extension pass through the origin? no
New end point after mirroring wrt y-axis: (-7.6,12.6)

Sample Testcase 3:

Input:

1 4 1 19 1

Output:

Start point: (1,4)
End point: (1,19)
Slope = inf
Is the line horizontal? no
Is the line vertical? yes
Does the line or its extension pass through the origin? no
New end point after mirroring wrt y-axis: (1,-11)

answer is:

a). backstage view

explanation:

backstage view is the area where files and data about them is managed— creating, saving, printing, sending to others, inspecting for hidden metadata or personal information, and setting options. so in this way we can add many things to our document swiftly.

i hope you get the idea.

a  social news website  is an  internet  website  that features  user-posted stories. such stories are ranked based on popularity, as voted on by other users of the site or by website administrators. users typically comment online on the news posts and these comments may also be ranked in popularity. since their emergence with the birth of  web 2.0, social news sites have been used to link many types of information, including news, humor, support, and discussion. all such websites allow the users to submit content and each site differs in how the content is moderated. on the  slashdot  and  fark  websites,  administrators  decide which articles are selected for the front page. on  reddit  and  digg, the articles that get the most votes from the community of users will make it to the front page. many social news websites also feature an online comment system, where users discuss the issues raised in an article. some of these sites have also applied their voting system to the comments, so that the most popular comments are displayed first. some social news websites also have a  social networking  function, in that users can set up a user profile and follow other users' online activity on the website.