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MarilynReyes
Group Title
Find the distance between the points (2, 5) and (3, 0)
 one year ago
 one year ago
MarilynReyes Group Title
Find the distance between the points (2, 5) and (3, 0)
 one year ago
 one year ago

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amistre64 Group TitleBest ResponseYou've already chosen the best response.0
subtract, square, add, sqrt
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.0
what do we get when we subtract one point from the other? (2,5)  (3,0)  ? , ?
 one year ago

MarilynReyes Group TitleBest ResponseYou've already chosen the best response.0
1, 5 ???
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.0
close; 2   3 = 5 so lets go with 5, 5 :) what do we get when we square each of those values?
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.0
there are 4 steps in all, we are at #2 :)
 one year ago

MarilynReyes Group TitleBest ResponseYou've already chosen the best response.0
so it's 5, 5 over 2, 2
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.0
no, lets focus on squaring the parts that we found: 5, 5 would you agree that this squares to 25,25 ?
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.0
the formula for distance is generally stated as:\[d=\sqrt{(xx_o)^2+(yy_o)^2}\] i tend to put the wrong parts in the wrong places so I like to step thru it: subtract square add sqrt
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.0
given 2 point: (x,y) and (xo,yo) step1: subtract ( x, y )  (xo,yo)  xxo, yyo step2: square (xxo)^2 , (yyo)^2 step3: add (xxo)^2 + (yyo)^2 step 4: sqrt sqrt((xxo)^2 + (yyo)^2) which is how the formula is developed.
 one year ago
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