SOLUTION: what is the length of the segment that joins two points whose coordinates are (4,-1) and (7,5)? 1) 5 2) 29 3) 13 4) 45

Question 390005: what is the length of the segment that joins two points whose coordinates are (4,-1) and (7,5)?
1) 5
2) 29
3) 13
4) 45
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Note:

is the first point

. So this means that and .
Also,

is the second point

. So this means that and .

Start with the distance formula.

Plug in , , , and .

Subtract from to get .

Subtract from to get .

Square to get .

Square to get .

Add to to get .

Now if each of your answer choices are in square roots, then this would mean that the answer is choice 4)

If you need more help, email me at jim_thompson5910@hotmail.com

Also, feel free to check out my tutoring website

Jim
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