Question

Graph the image of this triangle after a dilation with a scale factor of 3 centered at the origin.

Use the polygon tool to graph the triangle.

Answer 1

you can do it on desmos if you like

Answer 2

wifi here sucks it's taking a while to open

Answer 3

oh ok

Answer 4

ah I see it now.

So it's a dilation of 3 from the origin. That's basically multiplying every coordinate by 3.

(0,0) becomes (0,0)
(3,3) becomes (9,9)
(3,-1) becomes (0,-3)

Answer 5

so do i have to multiply them

Answer 6

Yeah you multiply them all by 3.

Answer 7

could you put the problem out and i'll solve it ?

Answer 8

There's 3 coordinate points:
(0,0) (3,3) (3,-1)

A dilation of 3 from the origin means you multiply them all by 3.
(0*3,0*3) (3*3,3*3) (3*3,-1*3)

Once you solve that you can graph them.

Answer 9

(0*3,0*3) = 0

(3*3,3*3) = 29.7

(3*3,-1*3) = 6

Answer 10

It's more like this:
( 0*3 , 0*3 ) = ( 0 , 0 )
( 3*3 , 3*3 ) = ( 9 , 9 )

Answer 11

(3*3 , -1*3) = (9,-3)

Answer 12

ok on desmos can you graph those and how to connect lines on desmos

Answer 13

I can't connect the points on desmos for some reason :S

Answer 14

I got this so far https://www.desmos.com/calculator/ooghhbonss

Answer 15

does it look like this ?

Answer 16

Yes

Answer 17

Graph the image of this figure after a dilation with a scale factor of 3 centered at the origin.



Use the polygon tool to graph the dilated figure.

Answer 18

Same thing but there's 4 points this time.
( -2 , -1 )
( 1 , -1 )
( -1 , -3 )
( -2 , -3 )

Multiply them by 3.

Answer 19

-2 x 3 =

right

Answer 20

Yeah

Answer 21

(-6, -3)

(3, -3)

(-3, -9)

(-6, -9)

if i solve it you can graph them you're much better doing that than me

Answer 22

I mean I can draw it I guess



Sorry I messed up on a post above,
one of the coordinates (-1,-3) should be (1,-3)

Answer 23

on desmos i meant at first

Answer 24

lol hows this https://www.desmos.com/calculator/xf1mrxixgj

Answer 25

does it look like this ?

Answer 26

@mhchen

Answer 27

Yeah that looks right