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QuestionMathematics

How do you reflect an equation over the y-axis?
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Step 1:
I'll solve this problem step by step, following the specified LaTeX formatting guidelines:

Step 2:
: Understanding Reflection over the y-axis

Mathematically, this means replacing every $$x$$ with $$-x$$ in the original equation.
When reflecting an equation over the y-axis, the fundamental transformation is to change the sign of the x-coordinate while keeping the y-coordinate the same.

Step 3:
: General Reflection Rule

f(x) \rightarrow f(-x)
The reflection rule can be expressed as:

Step 4:
: Examples to Illustrate the Concept

- Reflected equation: $$y = (-x)^{2} + 4(-x) - 1 = x^{2} - 4x - 1
Example 1: Linear Equation Example 2: Quadratic Equation

Final Answer

To reflect an equation over the y-axis, replace every x with -x in the original equation, keeping the y-coordinate unchanged.