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Mathematics 13 Online
Grizzace7786:

Triangle PQR is transformed to triangle P'Q'R'. Triangle PQR has vertices P(3, −6), Q(0, 9), and R(−3, 0). Triangle P'Q'R' has vertices P'(1, −2), Q'(0, 3), and R'(−1, 0). Plot triangles PQR and P'Q'R' on your own coordinate grid. Part A: What is the scale factor of the dilation that transforms triangle PQR to triangle P'Q'R'? Explain your answer. (4 points) Part B: Write the coordinates of triangle P"Q"R" obtained after P'Q'R' is reflected about the y-axis. (4 points) Part C: Are the two triangles PQR and P''Q''R'' congruent? Explain your answer. (2 points)

Aqual:

@BestBoiKirby

BestBoiKirby:

i am here

BestBoiKirby:

one q before i start

BestBoiKirby:

is this is a test question?

Grizzace7786:

It is for a review of a test. But I cant figure this stupid question out and it doesnt even give me the grid to try and solve it

BestBoiKirby:

ok, so do you have grid paper? or do you have enough art skills to make a decent looking grid?

Grizzace7786:

I could try but I dont know the coordinates or anything

BestBoiKirby:

well, heres what you should do, ill list it srep by step

Aqual:

"srep", lol

BestBoiKirby:

make a giant plus sine for the base of ur grid

BestBoiKirby:

sign*

Grizzace7786:

I know that part equals 2 but part B and C make no sense

BestBoiKirby:

huh? you just completely threw me off

Grizzace7786:

part A equals 2

Grizzace7786:

I got that far but as for part B and C. It doesnt make any sense

BestBoiKirby:

if im being 1000% honest, i feel like you should ping someone better at math than me, i can try, but i feel you would get the best results out of someone like mira angel

BestBoiKirby:

do you want me to ping her or are you ok with meh bad explanations

Grizzace7786:

You can ping her if you want

BestBoiKirby:

shes offline TwT

BestBoiKirby:

@darkknight, you're good at math, can you help him and give a good explanation?

BestBoiKirby:

or @silvernight269

BestBoiKirby:

bring all the knights

Shadow:

Get some graph paper out or use Desmos to graph the triangles

Grizzace7786:

Why is this hard?! Like why cant math just be easy

Shadow:

\[D = \sqrt (x _{2-} x _{1})^2 + (y _{2} - y _{1})^2\] You can use this formula to calculate the distance between points if you can't tell on the graph

Grizzace7786:

?????????

Grizzace7786:

TBH Iḿ terrible at math. I understand some of it but the rest is just way to hard. I dont understand the formulas and all that

Shadow:

Okay give me a min

Shadow:

well, offline, lol

Mercury:

Asked & answered here: https://questioncove.com/study#/updates/5faf766f79a73baa39e82000

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