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Question 82Asked in DSSSB TGT Computer Science (Technical), 1 Aug 2021, Shift 1

Consider a triangle with co-ordinates points: A(0, 0), B(3, 3) and C(2, 5). When scaling parameter is 2 towards X-axis and 4 towards y- axis, then what are…

Consider a triangle with co-ordinates points: A(0, 0), B(3, 3) and C(2, 5). When scaling parameter is 2 towards X-axis and 4 towards y- axis, then what are the new co-ordinates of triangle?
  1. AA(0, 0), B(6, 12), C(4, 20)
  2. BA(0, 0), B(5, 7), C(4, 9)
  3. CA(2, 4), B(5, 7), C(4, 9)
  4. DA(0, 0), B(3/2, 3/4), C(1, 5/4)
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Correct answer: (A) A(0, 0), B(6, 12), C(4, 20)

Explanation

Scaling multiplies coordinates: x' = 2x, y' = 4y. A(0, 0) stays (0, 0), B(3, 3) becomes (6, 12), C(2, 5) becomes (4, 20).

From DSSSB TGT Computer Science PYQ (Technical), 1 Aug 2021, Shift 1

This is question 82 of DSSSB TGT Computer Science PYQ (Technical), 1 Aug 2021, Shift 1. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.