What is the result of substituting for y in the bottom equation
y=x+3
y=x^2+2x-4

Question:

What is the result of substituting for y in the bottom equation? y = x – 3 y = x2 + 2x – 4 A. (x – 3) = x2 B. y = (x – 3)2 + 2(x – 3) – 4 C. x – 3 = x2 + 2x – 4 D. y = x2 + 2x – 4 – (x – 3)

Option C: is the resulting equation

Explanation:

Given that and

We need to determine the resulting equation by substituting the value of y in the equation

Option A:

Substituting the value of y in the second equation does not results the equation because the last two terms is missing.

Hence, Option A is not the correct answer.

Option B:

This is not the resulting expression because instead of substituting the value for y, it has been wrongly substituted for x.

Hence, Option B is not the correct answer.

Option C:

This is the resulting expression because substituting in the second equation, we get,

Hence, Option C is the correct answer.

Option D:

This is not the resulting expression because instead of substituting the values for y, the value of y has been subtracted.

Hence, Option D is not the correct answer.

4.

step-by-step explanation:

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