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The slope is "Undefined"
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(a+11)(a-1)
Step-by-step explanation:
The introduction of imaginary numbers similar to the introduction of negative numbers through the determination of square root of a negative number.
<h3>Imaginary numbers </h3>
Complex numbers are square root of a negative number. Since a square root of a negative number cannot be determined, it is always represented with "i"
Given the rational number √-4 for instance, this will result in complex number or imaginary number since it is a negative number.
Learn more on imaginary number here: brainly.com/question/10662770
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