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kcla1996
Group Title
Find the distance between the two points. Round to the nearest tenth if necessary. (2, 5) and (–1, –5)
 2 years ago
 2 years ago
kcla1996 Group Title
Find the distance between the two points. Round to the nearest tenth if necessary. (2, 5) and (–1, –5)
 2 years ago
 2 years ago

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ash.vasvani Group TitleBest ResponseYou've already chosen the best response.1
Make a triangle, Pythagorean theorem.
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.3
or you could use this : Distance between points (x1,y1) and (x2,y2) is \(\huge d=\sqrt{(x_1x_2)^2+(y_1y_2)^2}\)
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
Distance formula is derived from Pythagoras' Theorem, I've found it's easier for students to remember the one formula than have to memorize another one.
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
dw:1349496154838:dw
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
It's easy enough to see what the lengths of the legs of the triangle are, then solve for the hypotenuse.
 2 years ago

kcla1996 Group TitleBest ResponseYou've already chosen the best response.0
Here are the choices: A. 1 B. 109 C. 10.4 D. 3
 2 years ago

kcla1996 Group TitleBest ResponseYou've already chosen the best response.0
is 1 the correct answer?
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
dw:1349496503466:dw
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
1 doesn't seem very reasonable for points that far apart.
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
That seems more reasonable, but how can you be sure? What if it wasn't a multiple choice question and you had to provide an exact value, not just one rounded to the tenths' place?
 2 years ago

kcla1996 Group TitleBest ResponseYou've already chosen the best response.0
oh i just counted how long the triangle's height was on the picture you drew, and i counted 10
 2 years ago

kcla1996 Group TitleBest ResponseYou've already chosen the best response.0
is it right?
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
Ah, no. You have to use Pythagorean Theorem to find the hypotenuse of the right triangle. dw:1349498042456:dw Or perhaps you would have been better off using the distance formula hart provided..
 2 years ago

kcla1996 Group TitleBest ResponseYou've already chosen the best response.0
ok i'll try it....i'll tell you what i get
 2 years ago

kcla1996 Group TitleBest ResponseYou've already chosen the best response.0
how do i put (2,5) and (1,5) in that equation
 2 years ago

AriPotta Group TitleBest ResponseYou've already chosen the best response.0
coordinates are (x,y) so substitute the coordinates' x's and y's
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.3
yup, now don't forget to take aquare root.
 2 years ago

kcla1996 Group TitleBest ResponseYou've already chosen the best response.0
oh thank you! so it's 10.4 :D
 2 years ago
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