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3 years ago

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1.What would be the points of AA'B'C' after AABC was reflected across the y-axis? A (-4,1) B (4,3) C (0,-1) 2. What would be the

points if the triangle was dilated by a scale factor of 2?

1 answer:

Schach [20]3 years ago

6 0

Answer:

B its a guess because nothing is shown

Step-by-step explanation:

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Answer:

a) ΔF'G'H' is the image of ΔFGH

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Step-by-step explanation:

Question a

Since the smaller triangle is named F'G'H', it means that, it is the image of triangle FGH.

Question B.

To find the center of dilation, draw straight lines through any two corresponding points.

The straight lines will meet at (7,-1).

This is called the center of dilation.

See graph in attachment.

Question c

The scale factor of the dilation is given by;

$k=\frac{|F'G'|}{|FG|}$

$k=\frac{\sqrt{(4-5)^2+(1-5)^2}}{\sqrt{(3-1)^2+(3-11)^2}}$

$k=\frac{\sqrt{1+16}}{\sqrt{4+64}}$

$k=\frac{\sqrt{17}}{\sqrt{68}}$

$k=\frac{\sqrt{17}}{2\sqrt{17}}$

$k=\frac{1}{2}$

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