A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
need to find m so that y=mx+5 has a common intersection point with y=7x+43 and y=8x+53
anonymous
 4 years ago
need to find m so that y=mx+5 has a common intersection point with y=7x+43 and y=8x+53

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Do you mean same common intersection point

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0If no all values of m except 7,8

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i need to find a value for the slope for thee first equation so it has a common intersection point with the other 2

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0unfortunately that didn't solve it

Mr.Math
 4 years ago
Best ResponseYou've already chosen the best response.3Do you know how to find the intersection point of the two given lines?

Mr.Math
 4 years ago
Best ResponseYou've already chosen the best response.3I mean y=7x+43 and y=8x+53.

Mr.Math
 4 years ago
Best ResponseYou've already chosen the best response.3The two lines intersect \(7x+43=8x+53 \implies x=10\). Substitute \(x=10\) in either equation you get \(y=70+43=27\). So the intersection point is \(10,27\). Plug this point in the first equation and solve for m.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Mr Math says the same

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I did it using determinats

Mr.Math
 4 years ago
Best ResponseYou've already chosen the best response.3Yes, NotSObright is so bright and he's right.

Mr.Math
 4 years ago
Best ResponseYou've already chosen the best response.3You basically have to solve: \[27=10m+5 \implies m=\frac{32}{10}=\frac{16}{5}.\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0my mistake. Thank you to both of you. The online program I use is picky... did not have to simplify to 16/5. successful using 32/10
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.