Transformation of Reflection on Coordinate Grid

Is the picture being reflected in the y-axis or x-axis?

• y-axis

• x-axis

What is the rule for the following reflection? 

• Reflection across       y = −2

• Reflection across        y = 2

• Reflection across            x = 2

• Reflection across          x =  −2

What is the Algebraic Notation for this Reflection?

• (x, y) → (y, x)

• (x, y) → (-x, y)

• (x, y) → (-y, -x)

• (x, y) → (x, -y)

Which of the following best describes a reflection?

• A transformation that slides a figure to a new position without turning it.

• A transformation that turns a figure around a point.

• A transformation that flips a figure over a line.

• A transformation that changes the size of a figure.

Is the picture being reflected in the y-axis or x-axis?

• y-axis

• x-axis

Pick the line of reflection that was used on the graph.

• x = 3

• x = -3

• y = 3

• y = -3

Plot A(1,1) B(3,1) C(2,4). Rotate it 90° clockwise, then reflect it over the y-axis. What are the new coordinates of A'B'C'?

• A' (-1, -1) B' (-1, -3) C' (-4, -2)

• A' (-1, 1) B' (-1, 3) C' (-4, 2)

• A' (1, -1) B' (1, -3) C' (4, -2)

• A' (-1, -1) B' (-3, -1) C' (-2, -4 )

Two triangles are shown on the coordinate grid. Which sequence of transformations shows that ΔABC≅ΔDEF

• Reflect △ABC across the x-axis, then translate it right 1

• Reflect △ABC across the y-axis, then translate it right 1

• Reflect △ABC across the x-axis, then translate it left 1

• Reflect △ABC across the y-axis, then translate it left 1

Two trapezoids are shown on the coordinate grid. Which sequence of transformations shows that the two trapezoids are congruent

• Reflect Trapezoid 1 across the x-axis, then reflect the resulting figure across the y-axis.

• Translate Trapezoid 1 to the right 4 units, then reflect the resulting figure across the x-axis.

• Translate Trapezoid 1 to the right 4 units, then translate the resulting figure down 4 units.

• Translate Trapezoid 1 down 4 units, then reflect the resulting figure across the x-axis.

Two trapezoids are shown on the coordinate grid. Which sequence of transformations shows that the two trapezoids are congruent?

• Translate Trapezoid 1 to the right 6 units, then translate the resulting down 2 units.

• Reflect Trapezoid 1 across the x-axis, then reflect the resulting figure across the y-axis.

• Translate Trapezoid 1 to the right 6 units, then reflect the resulting figure across the x-axis.

• Translate Trapezoid 1 down 2 units, then reflect the resulting figure across the y-axis.