Question

What are the coordinates of the vertices of the triangle under the translation (x, y)-->(x - 1, y - 3)
A) (5,-4), (0,0), (5,4)
B) (-8,0), (-1,-1), (-4,-5)
C) (0,-8), (-1,-1), (-5,-4)
D) (-4,5), (6,0), (4,5)

https://tisd3080-hs-ccl.gradpoint.com/Resource/9515325,0/Assets/testitemimages/geometry_b/transformations/mc014-1.jpg

Answer 1

can you identify the coordinates for each of the three vertices?

Answer 2

The ones before the translation.

Answer 3

The ones just as you see them in that graph.

Answer 4

yes i can

Answer 5

You are going to take each of the points (x,y)
in plug them into (x-1,y-3)


for example if one of the points were (2,-3) then you would have after the translation
(2-1,-3-3) and you can simplify this (1,-6)
This was just example... (2,-3) was not one of the vertices before the translation.

Answer 6

notice in my example I just replace x with 2 and y with -3 in (x-1,y-3) to get the point after translation

Answer 7

so if one point is (0,2) it would be (0-1, 2-3) making it (-1,-1)

Answer 8

that's right

Answer 9

so that narrows your choices down to B and C
so pick another point to eliminate one of those choices

Answer 10

point (-3,-2) would be (-3-1,-2-3) and would go to (-4,-5)

Answer 11

yep looks good
so you should have your answer now

Answer 12

yes I got (-8,0), (-1,-1), (-4,-5)

Answer 13

great job

Answer 14

that is correct :)

Answer 15

thank you(: I think I got it now.

Answer 16

mind helping me with some more?