A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Write the equation of the line perpendicular to y = 2x + 1 and passing through the point (2,3).
anonymous
 one year ago
Write the equation of the line perpendicular to y = 2x + 1 and passing through the point (2,3).

This Question is Open

MrNood
 one year ago
Best ResponseYou've already chosen the best response.2ok the general form of a straight line is y=mx + c compare that to YOUR equation y= 2x+1 what is the value equivalent to m, in YOUR equation?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the value that is equal to m is 2 . but i need perpendicular

MrNood
 one year ago
Best ResponseYou've already chosen the best response.2OK  we're getting there m is the slope of the line the slope of a line perpendicular to that is 1/m so if the slope is 2  what is the slope of the perpendicular line?

MrNood
 one year ago
Best ResponseYou've already chosen the best response.2ok good so the equation of the perpendicular line is of the form y = 1/2 x +b but you are told that when x=2 then y =3 (because the point given lies on the line) so put those values into the equation, and you can then work out what b is

MrNood
 one year ago
Best ResponseYou've already chosen the best response.2no  it is y= (1/2) x +b

MrNood
 one year ago
Best ResponseYou've already chosen the best response.2put y = 3, and x= 2 you will then have an equation with b as the unknown value

MrNood
 one year ago
Best ResponseYou've already chosen the best response.2so you now know m and b so write the new equation y = mx+b

MrNood
 one year ago
Best ResponseYou've already chosen the best response.2yes  just about... it's y = 1/2 x + 2 well done. Just remember  if you have a line of slope m then the perpendicular line has slope 1/m
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.