## What happens when a point is reflected over Y X?

When you reflect a point across the line y = x, the x-coordinate and y-coordinate change places. If you reflect over the line y = -x, the x-coordinate and y-coordinate change places and are negated (the signs are changed). the line y = x is the point (y, x).

## How do you reflect across the Y-axis?

Reflection across the y-axis: y = f ( − x ) y = f(-x) y=f(−x) Besides translations, another kind of transformation of function is called reflection. If a reflection is about the y-axis, then, the points on the right side of the y-axis gets to the right side of the y-axis, and vice versa.

## What is the image of (- 7 9 after a reflection over the y-axis?

2. Find the reflection of the following in y-axis. Solution: (i) The image of P (-7, 9) is P’ (7, 9).

## What are the coordinates of triangle ABC when reflected across the Y-axis?

Reflections across the line y = x A reflection across the line y = x switches the x and y-coordinates of all the points in a figure such that (x, y) becomes (y, x). Triangle ABC is reflected across the line y = x to form triangle DEF. Triangle ABC has vertices A (-2, 2), B (-6, 5) and C (-3, 6).

## What point is the image of 3/4 if it is reflected over the y axis?

(i) The image of the point (3, 4) in the y-axis is the point (-3, 4). (ii) The image of the point (-3, -4) in the y-axis is the point (-(-3), -4) i.e., (3, -4). (iii) The image of the point (0, 7) in the y-axis is the point (0, 7). (iv) The image of the point (-6, 5) in the y-axis is the point (-(-6), 5) i.e., (6, 5).

## What is the image point of 0 8 0 8 after a translation right 3 units and down 5 units?

Answer: The image of point (0, 8) is (3, 3).

## What is the formula for rotating 90 degrees clockwise?

Also this is for a counterclockwise rotation. If you want to do a clockwise rotation follow these formulas: 90 = (b, -a); 180 = (-a, -b); 270 = (-b, a); 360 = (a, b). I hope this helps!

## Is 90 degrees clockwise the same as 270 degrees counterclockwise?

Rotate 90 Degrees Clockwise or 270 Degrees Counterclockwise About the Origin. There is no difference between 90-degree Clockwise Rotation and 270-degree counter clockwise rotation. The are the same thing and you will use the same formula (that is mentioned below).

## How do you rotate a matrix 90 degrees in Python?

The rot90() function is used to rotate an array by 90 degrees in the plane specified by axes. Rotation direction is from the first towards the second axis. Array of two or more dimensions.

## How do you rotate a matrix 180 degrees?

Given a square matrix, the task is that we turn it by 180 degrees in anti-clockwise direction without using any extra space. From the above illustration we get that simply to rotate the matrix by 180 degree then we will have to print given matrix in reverse manner.

## How do you rotate a matrix 90 degrees in Matlab?

B = rot90( A ) rotates array A counterclockwise by 90 degrees. For multidimensional arrays, rot90 rotates in the plane formed by the first and second dimensions. B = rot90( A , k ) rotates array A counterclockwise by k*90 degrees, where k is an integer.

## How do you rotate a matrix in python?

1. Consider temp_mat = [], col := length of matrix – 1.
2. for col in range 0 to length of matrix. temp := [] for row in range length of matrix – 1 down to -1. add matrix[row, col] in temp. add temp into temp_mat.
3. for i in range 0 to length of matrix. for j in range 0 to length of matrix. matrix[i, j] := temp_mat[i, j]