1.3, 2.1-2.3 translations and reflections hwk

What transformation occurred? 

• reflection
• translation

What transformation occurred? 

• reflection
• translation

Describe the translation (x,y) → (x+7, y-2)?

• 7 units right, 2 units down
•  7 units up, 2 units left
• 7 units left, 2 units up
• 7 units down, 2 units down

Let Triangle ABC have vertices at A(1, 10), B(1,2) and C(7,2). If Triangle ABC is reflected over the y-axis, what are the coordinates of the image? The rule for reflecting over the y-axis is given in the diagram. 

• A(-1, 10), B(-1,2) and C(-7,2)
• A(1, -10), B(1,-2) and C(7,-2)
• A(-1, -10), B(-1,-2) and C(-7,-2)

What transformation is shown?

• reflection
• translation

Line segment AB has endpoints A(-3, 2) and B(-6, 4). If line segment AB is reflected across the y-axis, what are the coordinates of A' and B'?

• A'(3,2) and B'(6,4)
• A'(-3,-2) and B'(-6,-4)
• B'(3,2) and A'(6,4)
• B'(-3,-2) and A'(-6,-4)

Point q is located at (5, -6). If point q is reflected over the x-axis, what are the coordinates for q'?

• q'(-5, -6)
• q'(-5, 6)
• q'(5, 6)
• q'(-6, 5)

How do you read this: A'?

• A copy
• A image
• A notation
• A prime

What transformation happened?

• reflection over the line y=x
• reflection over the x-axis
• reflection over the y-axis
• reflection over the line y=-x

The vector〈-2, -5〉will produce the same image as:

• (x, y) → (x + 2, y + 5)
• (x, y) → (x - 2, y + 5)
• (x, y) → (x - 2, y - 5)
• (x, y) → (x + 2, y - 5)