A triangle is rotated 90° about the origin. Which rule describes the transformation?

(x, y) - (- , -y)
(x, y) - (-y, x)
(x, y) - (-y, -x)
(x, y) - (1, -x)

i got 86 for this

hope this !

if you need an explanation just ask

1/4 because there is 4 grades.

multiply then divide

step-by-step explanation:

isocolese triangle

we know that the line connect a and b is the hyptonuse

so first find the hypotonuse length using the distance formula, call the length c

since it is an isocolese triangle, the lengths of the legs are the same

using pythagorean theorem,

in this case, a=b since isocolese triangle so we get

or

we can find c so we can find the distances

we know that if we draw 2 circles, each has center at a and b, and find where they intersect, we can the 2 possible locations for c

if a has center at (xa,ya) and b has center at (xb,yb), then we can solve where

and

intersect to find where they intersect

i'm not going to put an example because i have to go to class. i hope this explanation is enough