Question Use the function rules to find the coordinates of ΔA"B"C" and predict the quadrant it will be in after the transformations. ΔABC , with coordinates A(−8,4) , B(−5,8) , and C(−3,3) , is transformed by (x,y)→(x+4,y−6) to produce ΔA′B′C′ . ΔA′B′C′ is transformed by the rule (x,y)→(x+5,y−3) . Create the rule for the composition transformation and predict what quadrant the image will be in.

1 answer

To find the coordinates of ΔA"B"C" after the transformations and determine the quadrant in which they will be located, let's follow the steps outlined in the problem.

Step 1: Apply the First Transformation

The first transformation is given by the rule \( (x,y) \to (x+4, y-6) \).

  1. Transform A(−8,4):

    • \( A' = (-8 + 4, 4 - 6) = (-4, -2) \)
  2. Transform B(−5,8):

    • \( B' = (-5 + 4, 8 - 6) = (-1, 2) \)
  3. Transform C(−3,3):

    • \( C' = (-3 + 4, 3 - 6) = (1, -3) \)

So, after the first transformation, the coordinates of ΔA'B'C' are:

  • \( A'(-4, -2) \)
  • \( B'(-1, 2) \)
  • \( C'(1, -3) \)

Step 2: Apply the Second Transformation

The second transformation is given by the rule \( (x,y) \to (x+5, y-3) \).

  1. Transform A'(-4, -2):

    • \( A'' = (-4 + 5, -2 - 3) = (1, -5) \)
  2. Transform B'(-1, 2):

    • \( B'' = (-1 + 5, 2 - 3) = (4, -1) \)
  3. Transform C'(1, -3):

    • \( C'' = (1 + 5, -3 - 3) = (6, -6) \)

After the second transformation, the coordinates of ΔA"B"C" are:

  • \( A''(1, -5) \)
  • \( B''(4, -1) \)
  • \( C''(6, -6) \)

Step 3: Determine the Quadrant

Now, let's analyze the coordinates of points A'', B'', and C'' to determine the quadrant in which ΔA"B"C" lies.

  1. Point A''(1, -5): x is positive, y is negative → Quadrant IV
  2. Point B''(4, -1): x is positive, y is negative → Quadrant IV
  3. Point C''(6, -6): x is positive, y is negative → Quadrant IV

All three points are in the fourth quadrant (Quadrant IV).

Conclusion

The coordinates of ΔA"B"C" after the transformations are:

  • \( A''(1, -5) \)
  • \( B''(4, -1) \)
  • \( C''(6, -6) \)

The image will be in Quadrant IV after completing the transformations.