3 years ago

PLEASE HELP ME I WILL MARK BRAINLIST!!!!

Mathematics

1 answer:

elixir [45]3 years ago

5 0

Answer: A

Step-by-step explanation: The slope of perpendicular lines is opposite reciprocal. In this case the slope would be 4/3. Plug in for x and y, you get -7 for b.

y = mx +b
9 = 4/3 (12) + b
9 = 16 + b
-7 = b

Rewrite the equation --> y = 4/3x - 7

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Graph the image of △UVW after a reflection over the line y=-x

aliya0001 [1]

Answer:

9514 1404 393

see attached

Step-by-step explanation:

Reflection over the line x = -1 alters the x-coordinates, but leaves the y-coordinates alone. The image point is as far horizontally from the reflection line as the pre-image point is. Each new x-coordinate is the old one subtracted from twice the x-value of the line of reflection: (x, y) ⇒ (-2-x, y) U(-8, -6) ⇒ U'(6, -6) V(-3, -6) ⇒ V'(1, -6) W(-4, -1) ⇒ W'(2, -1)