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Grade: 8,    Subject: Math,    Topic: Geometry Coordinate Plane Translation, Reflection, Rotation, Dialation
See the following text/image to answer questions 1 through 10
 
Question 1:
Line AB is reflected across the line Z1Z2. Fine new coordinates of points A and B.

A(15,7) and B(15,17)A(15,3) and B(15,13)

A(1,7) and B(1,17)A(15,17) and B(15,7)
 
Question 2:
Square HIJK is dilated using a scale factor 2.0. Center of dilation is the center of the square. Find new coordinates of points H and K.

H(4,10) & K(4,4)H(3,12) & K(4,3)

H(3,3) & K(3,10)H(3,11) & K(3,3)
 
Question 3:
Square HIJK is dilated using a scale factor 1.5. Center of dilation is the center of the square. It is then translated 4 points to the left and 4 points down. Find new coordinates of point K.

(1,1)(0,0)

(2,2)(3,3)
 
Question 4:
Circle with the center G is reflected across the y-axis and translated one point to the left. What is true about the circle?

It is in Quadrant I and IIIts center is below its previous center on y axis

It is touching the y-axisIt is touching the x-axis
 
Question 5:
Circle with the center G is rotated 180o counter-clockwise around the point O1. Find the coordinates of its center G.

(−4,13)(−4,10)

(−4,6)(4,10)
 
Question 6:
Line CD is rotated 30o clockwise around the point C. What is true about the rotated line?

Point D is on x-axisPoint C is in first quadrant

Point D is in first quadrantPoint D is in third quadrant
 
Question 7:
Line EF is translated 2 pints to the right, then dilated using a scale factor 1/7. Fine new coordinates of point F.

(1,4)(3,−4)

(1,−4)(7,−4)
 
Question 8:
Square OPQR is rotated 90o clockwise on its center. Find new coordinates of points O and Q.

O(2,−19) & Q(2,−11)O(2,−11) & Q(−2,−19)

O(−2,−19) & Q(2,−11)O(4,−10) & Q(2,11)
 
Question 9:
Square OPQR is rotated 90o clockwise on its center. It is then dilated using scale factor of 1.5. Find new coordinates of points O and Q.

O(3,−9) & Q(−3,−21)O(2,9) & Q(−2,−21)

O(3,−11) & Q(−3,−19)O(2,−11) & Q(−2,−19)
 
Question 10:
Triangle LMN is rotated 180o counter-clockwise around the point L. Find new coordinates of point N.

(2,0)(4,−10)

(5,1)(4,0)
 
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