A community for students.
Here's the question you clicked on:
 0 viewing
Sup_open~study
 3 years ago
Use the formula for slope to verify that a horizontal line has a slope of zero and that a vertical has an undefined slope.
I have no idea what to do can some one help explain it to me thanks. :)
Sup_open~study
 3 years ago
Use the formula for slope to verify that a horizontal line has a slope of zero and that a vertical has an undefined slope. I have no idea what to do can some one help explain it to me thanks. :)

This Question is Closed

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2The slope of the line through points (x1,y1) and (x2,y2) is given by : \(\huge m=\frac{y_1y_2}{x_1x_2}\) now horizontal line has equation of the form y=c, here xterm has '0' coefficient take any two points on this, say (x1,c),(x2,c) so put y1 = c and y2 = c in m and tell me what u get.

Sup_open~study
 3 years ago
Best ResponseYou've already chosen the best response.0i'm sorry i don't get what the y = c part ??

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2i'll draw a horizontal linedw:1348817053391:dw can u see that yco ordinate of every point on that line is same??

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2that means for any value of xcoordinate , y coordinate will be some constant 'c' only.....so we can write its equation as y=c got this?

Sup_open~study
 3 years ago
Best ResponseYou've already chosen the best response.0i think so the y will stay the same ( constant) meaning y = c ??

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2yup. similarly for vertical line , the equation is x=c

Sup_open~study
 3 years ago
Best ResponseYou've already chosen the best response.0i don't get the x=c part ??

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2dw:1348817443207:dw can u see that xco ordinate of every point on that vertical line is same

Sup_open~study
 3 years ago
Best ResponseYou've already chosen the best response.0one is smaller than the other ??

Sup_open~study
 3 years ago
Best ResponseYou've already chosen the best response.0so they are not really the same ??

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2for a vertical line, x coordinate always remains constant. hence its equation can be written as x=c did u understand this?

Sup_open~study
 3 years ago
Best ResponseYou've already chosen the best response.0yes i think i kind of get what what you are saying

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2now reply to my first comment
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.