Crazycookie1 Crazycookie1

02-01-2020
Mathematics

contestada

Help, I know D2 is the dilation of 2? And I know the rotation is 90 degrees but I’m not to sure on how to find my answer? Help please

Help I know D2 is the dilation of 2 And I know the rotation is 90 degrees but Im not to sure on how to find my answer Help please class=

Respuesta :

MathPhys MathPhys

02-01-2020

Answer:

(-18, 2)

Step-by-step explanation:

To rotate a point by 90°:

R₉₀ (x, y) = (-y, x)

R₉₀ (1, 9) = (-9, 1)

To dilate by 2:

D₂ (x, y) = (2x, 2y)

D₂ (-9, 1) = (-18, 2)

Answer Link

Otras preguntas

Give an example of a set of five ordered pairs. Determine the domain and range of the set.

what word needs an apostrophe ounce for ounce,humans aren't as strong as most insects or none

I made $30 in 1 hour asking people “Could I Get A Quarter for the Bus?” Just to make some money.. Do you think this is fine? I’m Nice about it and all...

Every day, Katie looks for seashells on the beach. She has 28 shells in her collection. Katie finds 12 more shells each day. Write an inequality to determine th

Suppose you drive to and from work on a street that runs east to west. on what day would you most likely have the sun shining directly in your eyes while drivin

What industry is prominent along the gulf coast in Mexico

WILL MARK BRAINLIEST Which of the following is the best classification for fossilized worm trails from ancient invertebrates? A. Petrified Fossils B.Calcifie

A 64 ounce container of sports juice cost $6.50. A 48 ounce container of the same juice costs $4.25. Which size container is a better buy?

Simplify 3(x + 2) + 4(x - 5)

In the late 1800s the growth of the railroad led to mid western cities like Minneapolis and Cleveland becoming Agricultural centers Unsettled territories Indus