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1. A sequence of transformations is... musical isometries written transformations two or more transformations a movie about transformations 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 2. ∆ABC is reflected over the y-axis and then undergoes a translation of (x, y)→ (x-2, y+2). Find the coordinates of A'. B C A A'= (0, 4) A'= (4, 0) A'= (-2, 4) A'= (4, 4) 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 3. ∆ABC is reflected over the x-axis & then undergoes a translation of (x, y)→ (x-4, y+3). Where is A'? A'= (5, -4) A'= (-9, 7) A'= (1, -7) A'= (1, -1) C B A 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 4. ∆ABC is rotated 180 degrees and then translated using (x, y) → (x + 2, y + 2). Find the coordinates of A'. B C A A'= (4,0) A'= (-2, 0) A'= (2,-2) A'= (-4,0) 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 5. ∆ABC is rotated 90 degrees and then translated by (x,y)→(x-3,y+1). Find the coordinates of A'. A'= (-2, 7) A'= (-1, 8) A'= (-5, 8) A'= (1, 4) B C A 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 6. ∆ABC is rotated 90 degrees and then reflected across the y-axis. Find the coordinates of A'. 12.4 B C A'= (-2, 3) A'= (3, 2) A'= (-3, 2) A'= (-2,-3) A 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 7. ∆ABC is rotated 180 degrees and then reflected over the y-axis. Find the coordinates of A'. 12.4 B C A'= (-2, 3) A'= (3, 2) A'= (-3, 2) A'= (2,-3) A 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 8. ∆ABC is rotated 90 degrees and then rotated 180 degrees. Find the coordinates of A'. 12.4 B C A A'= (-3,-1) A'= (3, 1) A'= (1, 3) A'= (3,-1) 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 9. ∆ABC is reflected across the y-axis and then reflected over the x-axis. Find the coordinates of A'. 12.4 B C A A'= (-3,-1) A'= (3, 1) A'= (1, 3) A'= (3,-1) 10. Tell if the following images appear to be a dilation of one another. Type Y for yesor N for no. 11. The pre-image coordinate A = (-2, 6) undergoes a dilation with scale factor 4. Find the coordinates of A'. A' = note: enter coordinate like this (x,y) no spaces 12. Tell if the following images appear to be a dilation of one another. Type Y for yesor N for no. 13. The pre-image coordinate A = (12, 8) undergoes a dilation with scale factor -½. Find the coordinates of A'. A' = note: enter coordinate like this (x,y) no spaces 2 -2 4 -4 2 -2 4 -4 6 -6 14. What is the scale factor of the dilation pictured here? F' F U = U' N N' 2 ½ -2 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 14. What is the scale factor of the dilation pictured here? E K S' Y' ½ E' K' -½ -2 Y S |