2 years ago

Which rule represents R0, 180°? (x, y) → (–y, x) (x, y) → (–x, –y) (x, y) → (y, –x) (x, y) → (y, x)

Mathematics

2 answers:

muminat2 years ago

7 0

Answer:

(x, y) → (–x, –y)

Step-by-step explanation:

The rule for 180° rotation about the origin is

$(x,y)\to (-x,-y)$

The coordinates of the image are obtained by negating both the x and y coordinates of the preimage.

Whether the rotation is clockwise or counterclockwise, the rule remains the same.

The correct option is (x, y) → (–x, –y)

VLD [36.1K]2 years ago

5 0

Answer:

(x, y) → (–x, –y) option B

Step-by-step explanation:

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2 years ago

Solve the equation 3/4x+3-2x = -1/4+1/2x+5

elena55 [62]

Hi there! The answer is x = -1

Let's solve this equation step by step!
$\frac{3}{4} x + 3 - 2x = - \frac{1}{4} + \frac{1}{2} x + 5$

First collect terms.
$- 1 \frac{1}{4} x + 3 = \frac{1}{2} x + 4 \frac{3}{4}$

Subtract (1/2)x from both sides.
$- 1\frac{3}{4} x + 3 = 4 \frac{3}{4}$

Subtract 3 from both sides.
$- 1\frac{3}{4} x = 1 \frac{3}{4}$

And finally divide by -1 3/4
$x = \frac{7}{4} \div - \frac{7}{4} = \frac{7}{4} \times - \frac{4}{7} = - \frac{28}{28} = - 1$