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Translations and Reflections

Last updated about 6 years ago

7 Nsɛmmisa

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Asemmisa {{asɛmmisaAhyɛnsode}}

1.

What transformation does the following rule describe? (x, y) → (x-2, y+5)

A Translate a figure right 5 units and down 2 units.

B Translate a figure right 2 units and up 5 units.

C Translate a figure left 2 units and up 5 units.

D Translate a figure down 2 units and right 5 units.

Asemmisa {{asɛmmisaAhyɛnsode}}

2.

Which of the following shows the rule in coordinate notation for the transformation below?

A (x,y) → (x+2, y-1)

B (x,y) → (x+1, y-2)

C (x,y) → (x-2, y+1)

D (x,y) → (x-1, y+2)

Asemmisa {{asɛmmisaAhyɛnsode}}

3.

Select all choices that represent a reflection over the y-axis.

Multiply all x coordinates by -1

Multiply all y coordinates by -1

P(2, 5)→P'(2, -5)

P(2, 5)→P'(-2, 5)

Asemmisa {{asɛmmisaAhyɛnsode}}

4.

What are the possible transformations are taking place if A is the preimage and B is the image?

Up 2 units, right 2 units, reflect over y-axis

Up 2 units, right 4 units

Left 2 units, up 2 units, reflect over y-axis

Right 4 units, reflect over x-axis

Reflect over x-axis, right 4 units, up 2 units

Reflect over y-axis, up 2 units, right 2 units

Asemmisa {{asɛmmisaAhyɛnsode}}

5.

Translate △JKL (x, y)→(x+2, y-4). Label the vertices of the image.

Asemmisa {{asɛmmisaAhyɛnsode}}

6.

△ABC has coordinates of A(0,4), B(-3,4), and C(-3, -1). The triangle is reflected across the x-axis and translated 2 units left and 5 units up to form △A'B'C'. What are the coordinates of △A'B'C'?

Asemmisa {{asɛmmisaAhyɛnsode}}

7.

△RST is reflected over x=-1. Graph the image and give the coordinates of the new figure.