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3241004551 [841]
3 years ago
5

Dilate line f by a scale factor of 2 with the center of dilation at the origin to create line f. Where are points A' and B' loca

ted after dilation, and how are lines fand f related?
(A) The locations of A' and B' are A' (0,4) and B' (4,0); lines f and f are parallel.

(B) The locations of A' and B' are A' (0, 2) and B' (2, 0); lines f and f are the same line.

(c) The locations of A' and B' are A' (0, 2) and B' (4, ); lines f and f intersect at point A.

(D) The locations of A' and B' are A' (0,4) and B' (2, 0); lines f and f intersect at point B.​
Mathematics
1 answer:
V125BC [204]3 years ago
4 0

Answer:

Option A

Step-by-step explanation:

We are given that

Scale factor=2

Center of dilation=(0,0)

Point A(0,2) and point B (2,0).

Slope of line f=\frac{y_2-y_1}{x_2-x_1}

Substitute the values

Slope of line f=\frac{0-2}{2-0}=-1

Distance between  A and Origin (0,0) is given by

OA=\sqrt{(0-0)^2+(0-2)^2}=2 units

Using distance formula

\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

OB=\sqrt{(0-2)^2+(0-0)^2}=2 units

Length of OA'=2OA=2(2)=4 units

Length of OB'=2(OB)=2(2)=4 units

x-intercept of line f' at x=4

y-intercept of line f' at y=4

Therefore, the points A' and B' are given by

(0,4) and (4,0)

Slope of line f'=\frac{0-4}{4-0}=-1

Slope of line f and f' are equal.Therefore, lines f and f' are parallel.

Option A is true.

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