You know that C is between A and B. How can its coordinates be (30,31)? That's way off the chart! Did you actually plot the points? !?!
You were correct to feel weird. Always do a sanity check when you get an answer. See whether it makes any sense.
AB:BC = 3:1 means that C is 3/4 of the way from A to B.
For the x-coordinate, 3/4 of the way from -6 to 6 is 3
For the y-coordinate, 3/4 of the way from -5 to 7 is 4
So, B = (3,4)
Too bad you didn't show any of your work ...
Given the coordinates of A and C ad (-6,-5) and (6,7) respectively and point B is on AC. Find the coordinates of B such that the ratio of AB to BC is 3:1
I just need an assurance because I got the answer (30,31). And I started to feel weird if my answer is correct? Because its too big
6 answers
What I did is
X = X1 + k (X2-X1)
= -6 + 3 (6+6)
= -6 + 3 (12)
= -6 + 36
= 30
Same procedure with the other side. Thank you very much! I just can't understand my teacher completely and having a trouble researching in YouTube and textbook.
X = X1 + k (X2-X1)
= -6 + 3 (6+6)
= -6 + 3 (12)
= -6 + 36
= 30
Same procedure with the other side. Thank you very much! I just can't understand my teacher completely and having a trouble researching in YouTube and textbook.
I see I made a typo. It should have read
AB:BC = 3:1 means that B is 3/4 of the way from A to C.
AB:BC = 3:1 means that B is 3/4 of the way from A to C.
https://www.khanacademy.org/
Here's another place to find lessons online. Just click on Courses at the top left, and choose what you need.
Then return here to ask a math tutor to check your work.
Here's another place to find lessons online. Just click on Courses at the top left, and choose what you need.
Then return here to ask a math tutor to check your work.
I will use that! Thank you very much for the advise!
You're welcome!
1 answer