We did graphing reflections of images homework from the book with problems that gave the vertices for each figure and said either reflect over x or y. This time, the homework is a worksheet and directions are to graph the reflection across either x or y with some value.
Example problem:
Graph the image of the figure using the transformation given.
1. reflection across y = -2. (Also, the figure is given, but need to figure out the coordinates).
original image: I(-3, -2), E(-3, -3), Q(2, -4), Z(0,-5)
a. Can you explain what does the across y = -2 mean? I know if we reflect over y, then the x value is multiplied by -1 and y stays the same. Am i supposed to multiply the x coordinate by -2? If i know how to solve, then i can do 4 others with different y value.
2. reflection across y = -x. (orignal image is A(3, -1), J(4, -3), S(4,2), T(5, -2)
a. Can you explain what does across y= -x mean?
3. reflect across y = x (original image H(-2, -3), L(0,3), Q(-2, -1), P (-3, -2)
a. Can you explain what does across y= x mean?