What will be the new position of the given point (–8, –2) after rotating 180° about the origin?

Answers

Answer 1

Answer:

The sign of coordinate will changes as (8,2) after 180° rotation about the origin.

What are coordinates?

A pair of numbers that employ the horizontal and vertical distinctions from the two reference axes to represent a point's placement on a coordinate plane. typically expressed by the x-value and y-value pairs (x,y).

As per the given coordinate (–8, –2).

If we rotate it by 180° about the origin no matter clockwise or anti-clockwise the coordinate will shifts in the first quadrant at (8,2) as shown below.

Hence "The sign of coordinate will changes as (8,2) after 180° rotation about the origin".

For more about coordinates,

brainly.com/question/7869125

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Answer 2

Answer:

Answer:

(8,2)

Step-by-step explanation:

Rotating a point 180° basically puts it in the quadrant across from it, in this case, the (x,y) quadrant.

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Y=2x-1 Graph the equation? (steps please thanks!)

Answers

$y=2x-1\n\ny-intercept\ (x=0)\n\ny=2\cdot0-1=-1\to(0;-1)\n\nx-intercept\ (y=0)\n\n2x-1=0\n2x=1\nx=0.5\to(0.5;\ 0)$

There are many ways to graph this equation.
Here's one that you should be able to manage:

-- Pick any number at all for 'x'.
[ y = 2x - 1 ], so double your number and subtract 1 to find 'y'.
Mark a point on your graph at (x, y) .

-- Pick any different number at all for 'x'.
[ y = 2x - 1 ], so double your number and subtract 1 to find 'y'.
Mark a point on your graph at (x, y) .

-- Using your pencil and ruler, connect the two points that you have marked
on your graph. Without moving the ruler, you may extend the line as far as you
want in each direction.

The coordinates of the vertices of ANGLE RST are R(-3,5), and S(4,5), and T(4,-2). Find the side lengths to the nearest hundredth and the angle measures to the nearest degree.

Answers

Side lengths: RS=7 and ST=7, and angle=90 degrees

Why?

Since second coordinates of R and S are the same so we can just count the length by adding first coordinate of R and first coordinate of S= |-3|+4=7

Since first coordinates of R is the same as first coordinate of T so we can just count the length by adding second coordinates of S and T=5+|-2|=7

Angle: RST is =90 degrees because triangle RST is right angled triangle. Why? Because RS is parallel to X axis(the same second coordinates of R and S) and ST is parallel to Y axis(the same coordinates of S and T) .

Simplify the expression using the order of operations.
(3-5) * -| -22 - 52 * 4|