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

6. What examples make Jack and Wendy think Danny has a "second sight"?(1 Point)A)Danny knew his birthday party would be at Great BarringtonB)Danny know his mom

Explain why your hair sticks to a plastic (polyethylene) comb.

plz help and thank you... My last question im asking from my teacher before i stop using this... If a popular man named Mr. Big Chungus who has about 298 choco

Find the value of x.

Lines a and b are parallel. Parallel lines a and b are cut by transversals s and t. The angles formed by the intersection of lines a, s, and t, clockwise from t

Speech on advantages and disadvantages of quarantine life ..?

Fashion Store has a 35% reduction on all goods. The price marked on each item is yet to be reduced. Ahmed decides to buy a lamp stand and a lawnmower marked £

1. John is building a miniature model of a building on campus. The dimensions of the building are 95 ft x 80 ft x 30 ft. The model is 1/10th the dimensions of t

Please help me now I need help

Early and Late Middle Ages question Invasions of Europe by outsiders caused the need and development of _______.