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# 10.8: Chapter Test

Difficulty Level: At Grade Created by: CK-12
1. If the point $Q(5, -2)$ is rotated $90^\circ$ CW about the origin, what are the coordinates of the rotated point?
1. (2, 5)
2. (2, –5)
3. (–2, –5)
4. (–5, 2)
2. If the image undergoes the rotation $R_{90^\circ}$, What is the resulting image?
3. What is the mapping rule for the dilatation below?
1. $(x, y) \rightarrow (kx, ky)$
2. $(x, y) \rightarrow (2x, 2y)$
3. $(x, y) \rightarrow (0.5x, 0.5y)$
4. $(x, y) \rightarrow (x, y)$
4. What is the notation for the translation below?
1. $R_{270^\circ} (x, y) = (y, -x)$
2. $R_{180^\circ} (x, y) = (-x, -y)$
3. $R_{90^\circ} (x, y) = (-y, x)$
4. $R_{-90^\circ} (x, y) = (-y, -x)$
5. What property is not common for all of the transformation types?
1. distance
2. angle measures
3. mid-points
4. parallelism
6. What are the coordinates of the point $G(-2, -3)$ that undergoes the composite transformation $r_{x-axis} \ \circ \ r_{y-axis}$
1. (2, –3)
2. (2, 3)
3. (3, –2)
4. (–3, –2)
7. What are the coordinates of the point $G(6, -2)$ that undergoes the composite transformation $R_{90^\circ} \ \circ \ T_{4, 5}$
1. (11, 3)
2. (2, 6)
3. (–16, 11)
4. (6, 11)
8. What is the notation for the translation below?
1. $T_{7, 3} \ \circ \ R_{180^\circ}$
2. $R_{180^\circ} \ \circ \ T_{7, 3}$
3. $r_{x-axis} \ \circ \ T_{7, 3}$
4. $T_{7, 3} \ \circ \ r_{x-axis}$
9. What is the slope of the line $ST$ with vertices $S(-3, 5)$ and $T(4, -4)$ that undergoes a translation of 4 units to the left and 2 units up?
1. $\frac{7}{9}$
2. $-\frac{7}{9}$
3. $-\frac{9}{7}$
4. $\frac{9}{7}$
10. What is the distance of the line $ST$ with vertices $S(-3, 5)$ and $T(4, -4)$ that undergoes a reflection in the line $y=-x$?
1. 1.4
2. 0
3. 11.4
4. –1.3

## Date Created:

Mar 10, 2014

Jan 14, 2015
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