A community for students.
Here's the question you clicked on:
 0 viewing
 2 years ago
MATH QUESTION HELP! If the slope of the line that passes through the points (a, 0) and (1, 2) is 1/2, what is the value of a?
 2 years ago
MATH QUESTION HELP! If the slope of the line that passes through the points (a, 0) and (1, 2) is 1/2, what is the value of a?

This Question is Closed

Pris
 2 years ago
Best ResponseYou've already chosen the best response.0The slope is 1/2. I'm not sure what you mean by gradient though.

henpen
 2 years ago
Best ResponseYou've already chosen the best response.1The equation of the line is y=mx+c m=0.5 so y=0.5x+c To find c, insert (1,2) into the equation (x=1, y=2), as the line passes through this point. 2=0.5(1)+c c=1.5 So y=0.5x1.5 (a,0) insert y=0 0=0.5x1.5 1.5=0.5x x=3

henpen
 2 years ago
Best ResponseYou've already chosen the best response.1*That method to find c works as c should satisfy the equation when any set of points (here (2,1)) are put in. If x=3 when y=0, then a=3

henpen
 2 years ago
Best ResponseYou've already chosen the best response.1Do you want me to expand on anything you don't get?

Pris
 2 years ago
Best ResponseYou've already chosen the best response.0No I get it thanks a bunch! :)
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.