Mathematics
23.01.2020 19:29
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What are the coordinate of triangle ABC when reflected over the line y = -x? A(1,
What are the coordinate of triangle ABC when reflected over the line y = -x?
A(1, 2), B(-2, 0), C(1,-4)
A (2, 1), B'(0, 2), C'(4,1)
O A' (2,-1), B'(0, -2), C'(4, -1).
O A'(1,2), B'(0, 2), C'(4,1)
O A'(-2, -1), B'(0, 2), C'(4,-1)
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A (2, 1), B'(0, 2), C'(4,1)
O A' (2,-1), B'(0, -2), C'(4, -1).
O A'(1,2), B'(0, 2), C'(4,1)
O A'(-2, -1), B'(0, 2), C'(4,-1)
ferg6
4,5(59 marks)
Since the function y= f(x) is decreasing on the interval (5, 7), y = -f(x) is INCREASING on the interval (5,7), because the slope is inverted due to the negative sign.
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