11. A circle with a radius of 6 cm is enlarged to be a circle with a radius of 15 cm. What scale factor was used to dilate the small circle into becoming the larger circle? a) 0.4 b) 4.5 c) 2.5 d) 9.0

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d

step-by-step explanation:

21

step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c