Move each point with the coordinates (a, b) to the location (b, -a).Equivalently, if the points are represented by a 2x1 column matrix, then pre-multiply by the matrix
( 0 1)
(-1 0)
rotate it 90 degrees
You dont, its just 90 degrees 3 times..
I dont really know if this is right but i think to do this problem you have to take a point then rotate the paper counter clockwise around the origin then you have a new point which is called a prime. Then reflect it over the y axis on the graph.
stick your arms straight out in front of you. Pretend that's twelve o'clock then move one of your arms to three o'clock. Bring the other arm and turn your body to three o'clock. you have just moved 90 degrees clockwise.
Switch the x and y coordinates and multiply the first first coordinate (the new x coordinate) by -1
rotate it 90 degrees
You dont, its just 90 degrees 3 times..
No, only their positions will change.
To rotate a figure 90 degrees clockwise about the origin, simply swap the x and y coordinates of each point and then negate the new y-coordinate. This is equivalent to reflecting the figure over the line y = x and then over the y-axis.
To rotate a figure 90 degrees clockwise around the origin on a coordinate grid, you can use the transformation rule: (x, y) becomes (y, -x). For the point (5, 5), applying this rule results in (5, -5). Therefore, after a 90-degree clockwise rotation, the new coordinates of the point are (5, -5).
To rotate a point (x, y) 90 degrees clockwise around the origin on a graph, you transform the coordinates using the formula (x', y') = (y, -x). This means that the new x-coordinate becomes the original y-coordinate, and the new y-coordinate becomes the negative of the original x-coordinate. For example, the point (2, 3) would rotate to (3, -2).
To rotate a point (x, y) 90 degrees clockwise around the origin, you transform the coordinates using the rule: (x, y) → (y, -x). This means the x-coordinate becomes the y-coordinate, and the y-coordinate becomes the negative of the original x-coordinate. For example, the point (2, 3) would rotate to (3, -2).
I dont really know if this is right but i think to do this problem you have to take a point then rotate the paper counter clockwise around the origin then you have a new point which is called a prime. Then reflect it over the y axis on the graph.
{1 0} {0 -1}
To rotate an object 90 degrees counter-clockwise, you can visualize or use a coordinate system. If you have a point (x, y), the new coordinates after the rotation will be (-y, x). For more complex shapes, apply this transformation to each point of the shape. Alternatively, if you're working with a physical object, simply turn it left (counter-clockwise) until it is oriented 90 degrees from its original position.
ENE plus 90 degrees (clockwise) is SSE.
You have to switch the x and y coordinates and multiply your new x coordinate by -1. You can also dram the point and rotate your paper physically by 90 degrees. Example: Your Coordinates: (3,8) New Coordinates: (-8,3) (3,8) ---> (8,3) ---> (-8,3) Another Ex: (-7,-1) --> (-1,-7) --> (1,-7)