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GuDViN [60]
3 years ago
7

What is the scale factor of dilation? (1 point) 1)1/2 2)1/3 3)1/4 4)1/5

Mathematics
2 answers:
Aleonysh [2.5K]3 years ago
5 0

Answer:

2)

Step-by-step explanation:

y is 1 to y is 3

x is 1 to x is 3

the scale 1/3

sergejj [24]3 years ago
3 0
Hold up one sec lemme think
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\huge\boxed{f(x)=-2x-8\ \text{or}\ f(x)=2x+\dfrac{8}{3}}

Step-by-step explanation:

f(x)=ax+b\\\\(f\circ f)(x)=a(ax+b)+b=a^2x+ab+b\\\\(f\circ f)(x)=4x+8\\\Downarrow\\a^2x+ab+b=4x+8\Rightarrow a^2=4\ \wedge\ ab+b=8\\\\a^2=4\to a=\pm\sqrt4\to a=\pm2\\\\\text{for}\ a=-2:\\-2b+b=8\\-b=8\\\boxed{b=-8}\\\\\text{for}\ a=2:\\2b+b=8\\3b=8\\\boxed{b=\frac{8}{3}}

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