Evaluate if x = 2 and y = –4.

entering that problem on the tube might get you an answer

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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homozygous. one is homozygous, while two is heterozygous.

the answer is (-4,-4)

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