Distance Formula: Find JK Distance to Nearest Tenth

  • Thread starter Thread starter xowe
  • Start date Start date
  • Tags Tags
    Formula
AI Thread Summary
The discussion centers on finding the distance between two points, J(2,-1) and K(2,5), using the distance formula. The user initially calculates the distance but expresses confusion about their method. It is confirmed that the calculation is correct, as the x-coordinates are the same, simplifying the problem to finding the difference between the y-coordinates. The user appreciates the clarification and acknowledges that recognizing the simplification would have saved time. Overall, the conversation highlights the importance of understanding the distance formula and its application in specific cases.
xowe
Messages
7
Reaction score
0
Yah, easy I know, but I got a little confused. Okay, here's the problem:
Find the distance between the points to the nearest tenth. J(2,-1) K(2,5) Here's what I did. d=√(2-2)^2+(5-(-1)^2 (the ^2 means squared) √(2-2)^2=0 so I'm left with √(5-(-1)^2= √(6)^2= √36=6 Ok, so how did I do? I wasn't sure if what I did was right, I think so, but I just needed to make sure. Thanks.
 
Mathematics news on Phys.org
Your solution is correct.
 
In fact, in that case, since the x coordinates of (2,-1) and (2,5) are the same so the distance is just the distance between -1 and 5 on a number line: 5-(-1)= 6.
 
Oh, yah I never thought about that. Heh, that would have saved some time, I'll remember that! Thanks to both of you.
 

Thread 'Non-orthogonal bases'

Suppose ,instead of the usual x,y coordinate system with an I basis vector along the x -axis and a corresponding j basis vector along the y-axis we instead have a different pair of basis vectors ,call them e and f along their respective axes. I have seen that this is an important subject in maths My question is what physical applications does such a model apply to? I am asking here because I have devoted quite a lot of time in the past to understanding convectors and the dual...
View full post »

Thread 'What Exactly is Dirac’s Delta Function? - Insight'

Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. In Dirac’s Principles of Quantum Mechanics published in 1930 he introduced a “convenient notation” he referred to as a “delta function” which he treated as a continuum analog to the discrete Kronecker delta. The Kronecker delta is simply the indexed components of the identity operator in matrix algebra Source: https://www.physicsforums.com/insights/what-exactly-is-diracs-delta-function/ by...
View full post »

Similar threads

MHB Areas of Plane Figures: 63.0 & 96.0 | Need Help w/ 3 & 4
Replies
3
Views
1K
B Can Higher Degree Nested Radicals Be Simplified?
Replies
41
Views
5K
I Question about Inverse Derivative Hyperbola function
Replies
2
Views
1K
MHB [ASK] Derivative of an Algebraic Fraction find f(0) + f'(0)
Replies
3
Views
2K
A Is this Recursive Pattern in the Collatz Sequence Known?
Replies
3
Views
300
I Find an explicit formula for this n-sum problem
Replies
7
Views
3K
MHB Cfm4life's questions at Yahoo Answers regarding surface areas of solids
Replies
1
Views
3K
MHB Calculating Height and Distance of a Mountain at Sea
Replies
8
Views
2K
MHB Finding the Equation of a Circle Passing Through Three Given Points
Replies
7
Views
3K
MHB How Can One Demonstrate the Ratio Between the Hypotenuses of Two Triangles?
Replies
2
Views
2K

Hot Threads

Recent Insights

Back
Top