meredith48034
meredith48034 meredith48034
  • 19-01-2019
  • Mathematics
contestada

Find the coordinates of M' after a reflection across the line y= -1 and then across the x=-2.

Find the coordinates of M after a reflection across the line y 1 and then across the x2 class=

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 20-01-2019

Answer:

  M' = (-1, 3)

Step-by-step explanation:

The two reflections are equivalent to a reflection across the point P = (-2, -1), which becomes the midpoint of the line segment MM'. The coordinates of M' can be found from ...

  M' = 2P -M = 2(-2, -1) -(-3, -5) = (-4+3, -2+5)

  M' = (-1, 3)

_____

The formula used comes from the formula for the midpoint:

  P = (M +M')/2

  2P = M + M' . . . . multiply by 2

  M' = 2P - M . . . . .subtract M

Ver imagen sqdancefan
Answer Link

Otras preguntas

5x1+1x(1/10)+3x(1/100)+6x(1/1000) in standard form
What is the actual distance around the garden?It took Clare 30 minutes to walk around the garden at a constant speed
According to the video which abilities and skills do human resources managers need to have
what would it be help!
The first basic idea of evolutionary adaptation can be traced back to _____. Group of answer choices
Should companies hire only people who represent the company image based on how they look?
A source vibrating at constant frequency generates a sinusoidal wave on a string under constant tension. If the power delivered to the string is tripled, by wha
What groups already inhabited the areas explored by de Soto?
Please help Choose the correct word. una parte del brazo el codo la rodilla la cabeza
Choose all that apply. Which of the following can be found in nerve cells? axons dendrites vacuoles synapses pith