2 years ago

X + 3y = 2; 4x - 3y = 23 The system of equations above has solution (x, y) What is the value of

1 answer:

8 0

Answer:

$x + 3y + 4x - 3y = 2 + 23 \\ 5x = 25 \\ x = 25 \div 5 = 5 \\ \\ 5 + 3y = 2 \\ 3y = 2 - 5 = - 3 \\ y = - 3 \div 3 = - 1$

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The scale factor is 2

From the question (see attachment), we have the following side lengths

$AQ = 1.25$

$A'Q' = 1.25 + 1.25$

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So, the scale factor (k) from AB to A'B' is calculated using the following scale factor formula

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