1. Which system of equations is shown in the graph? A. 2x + y = 9 x - y = 6 B. 2x - 6y = 1 7x + 4y = -2 C. 3x - y = 1 x + 2y = 12 D. x - 3y = -13 x + y = 1 Hint 2. Find the locus of points in the coordinate plane that satisfy the equations (x + 1)2 + (y - 3)2 = 72 and y = -x + 2. A. (-7, 9), (5, -3) B. no points C. (-4, -5), (4, 10) D. (6, -4), (8, -6) Hint 3. In a coordinate plane, quadrilateral quadrilateral WXYZ for A(-3, 1), B(4, 2), C(4, -2), D(-5, -3), W(0, 3), X(7, 4), Y(7, 0), and Z(-2, -1). What type of mapping is this? A. dilation B. translation C. reflection D. rotation Hint 4. Which figure has only one line of symmetry? A. B. C. D. Hint 5. Which statement is true for the figure below? A. is a translation image of B. is a translation image of C. is a rotation image of D. is a rotation image of Hint 6. If AB = 6, find the measure of the dilation image of for a dilation with scale factor -3. A. -6 B. 18 C. 9 D. 3 Hint 7. A square is reduced by a scale factor of . The area of the image is how many times the area of the preimage? A. 4 B. C. 2 D. Hint 8. Which description corresponds to the boundary below? A. all points in a plane that are 4 units from a given point in that plane B. all points in space that are 4 units from a given point C. all points in a plane that are 4 units from a given segment in that plane D. all lines in a plane parallel to a given line in that plane Hint 9. If A(2, 4) is reflected over the x-axis, what are its new coordinates? A. (-2, -4) B. (4, 2) C. (2, -4) D. (-2, 4) Hint 10. What is the locus of points in space that are 2 units from a given line segment 7 units long? A. A sphere of radius 3.5. B. A right cylinder with height 7 and radius 2 and hemispheres with radius 2 on each end of the cylinder. C. A sphere of radius 7. D. A right cylinder of radius 1 and height 7 and hemispheres with radius 1 on each end of the cylinder. Hint 11. Find the locus of points that satisfy both equations, x - 3y = -18 and x + y = -2. A. (8, 6) B. (4, -2) C. (-3, -2) D. (-6, 4) Hint 12. Find the locus of points in the coordinate plane that satisfy the equations y = 20 - x2 and y = x2. A. no points of intersection B. (2, 0) and (-3, -10) C. (-3.2, 10) and (3.2, 10) D. (6, 8) and (-4, -8) Hint 13. What is the preimage of the quadrilateral ABCD in the isometry below? A. STQR B. QRST C. TQRS D. TSRQ Hint 14. If Q (3, 4) of triangle QRS is translated by reflecting it about the graph of y = -1, what are the coordinates of Q'? A. (4, -5) B. (3 -6) C. (-6, 3) D. (-5, 4) Hint 15. Find the coordinates of A (3, -2) after it has been translated by reflecting it over the graph of y = 1 and then y = -1. A. (3, -6) B. (-2, 3) C. (6, -3) D. (-1, -2) Hint 16. Triangle QRS with coordinates Q (3, 2), R (-2, 1) and S (1, -3) is rotated 180° on the coordinate plane. What are the coordinates of triangle Q'R'S'? A. Q'(-3, -2), R'(-2, -1), S'(-1, -3) B. Q'(-2, -3), R'(2, -1), S'(-1, 3) C. Q'(-2, -3), R'(-1, 2), S'(-1, 3) D. Q'(-3, -2), R'(2, -1), S'(-1, 3) Hint