Sienna planned a rectangular pool, as shown in the scale drawing below. A rectangle with length 11 inches and width 7 inches.
She decides to change the length, the longer side of the pool, from 22 ft to 27.5 ft. Which expression finds the change in the scale factor?
StartFraction 11 inches over 27.5 feet EndFraction
StartFraction 22 feet over 11 inches EndFraction
StartFraction 22 feet over 27.5 feet EndFraction
StartFraction 27.5 feet over 22 feet EndFraction

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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

i believe b is the answer