What is the scale factor of dilation? 1 over 2 1 over 3 1 over 4 1 over 5

Mathematics

2 answers:

Dmitry_Shevchenko [17]2 years ago

7 0

RP is 3 units long and its transformation R'P' is 1 unit long

R'P' = 1/3 * RP

so the scale factor is 1/3

quester [9]2 years ago

7 0

Answer: 1 over 3

Step-by-step explanation:

The dilation is a transformation which produces similar figures.

The scale factor dilation is the ratio of the corresponding coordinates of the image and the pre-image.

In the given graph triangle PQR is dilated to form triangle P'Q'R', then the scale factor to the dilation is given by :-

$k=\dfrac{\text{x-cooordinate of R'}}{\text{x-cooordinate of R}}\\\\\Rightarrow\ k=\dfrac{1}{3}$

Hence, the scale factor of dilation = 1 over 3

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Lin solved the equation 8(x-3)+7=2x(4-17) incorrectly. Find the errors in her solution. What should her answer have been?

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Since the steps in Lin's solution are not shown, we are not able to find her erros. However, we can solve it step by step and find the correct result:

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Firstly, in the left part of the equation we have to multiply $8$ by the numbers inside the parenthesis; and in the right side we have to solve first what is inside the parenthesis: