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

What is the sum of the last four term of the series 7+9+11+...+21?

Simplify the expression. 5k(-6k^2 -2k+6)

Who followed Toussaint as the leader of the Haitian Revolution? What did he declare in 1804?

What happens to the force between two charges if one of the charges are doubled? it decreased by a quarter it quadruples it doubles it cuts in half

A diver starts at the wreck of the Varanger and then ascends 8 feet every 5 minutes. What is the diver’s depth after one hour? I NEED THE CORRECT ANSWER, THIS I

mangopir spring contain different element which is good for healing such as

Will mark brainliest PLEASE HELP!!! 20 points The coordinates of point A are (6,2). The coordinates of point B are (2, 6). Line AB is transformed to form line A

Gould Corporation uses the following activity rates from its activity-based costing to assign overhead costs to products: Activity Cost Pool

Please Help Marshmello.

The following table contains statements that provide some analysis of policies that address globalization. Categorize each of these statements as either positiv