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jaideeplalli302
01.01.2021 •
Mathematics
Need a problem showing how to to divide beach toys into equal groups. Solve it too.
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Answers on questions: Mathematics
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- M Mathematics Which represents a quadratic function? a) f(x) = −8x3 − 16x2 − 4xb) f (x) = x 2 + 2x − 5c) f(x) = + 1d) f(x) = 0x2 − 9x + 7...
Ответ:
Given:
A(-8,7) → A'(-7-8)
B(-4,7) → B'(-7,-4)
C(-6,2) → C'(-2,-6)
To find:
The transformation occurred between the set of points above.
Solution:
From the given set of points it is clear that the rule of transformation is
(x,y) → (-y,x) ...(i)
Because in the given set of points we interchange the x and y coordinates, then we are applying negative sign in the x-coordinate.
If a figure reflection over the x-axis, then
(x,y) → (x,-y)
If a figure reflection over the y-axis, then
(x,y) → (-x,y)
If a figure rotated 90° clockwise, then
(x,y) → (y,-x)
If a figure rotated 90° counterclockwise, then
(x,y) → (-y,x)
Only this rule of transformation is same as (i). So, the figure is rotated 90° counterclockwise.
Therefore, the correct option is D.