GCSE Maths Practice: transformations

Question 5 of 10

Identify the line of reflection when a shape maps onto itself across the x-axis.

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\( \begin{array}{l}\text{What is the equation of the line of reflection if a shape maps onto itself across the x-axis?}\end{array} \)

Choose one option:

Visualize flipping the shape over y=0 and check coordinates.

Reflection across the x-axis flips a shape over the horizontal axis. The equation of the line of reflection is y=0. Points above the x-axis move the same distance below it and vice versa. Understanding reflections is important for symmetry, transformations, and coordinate geometry. Practice plotting shapes and their reflections to see how coordinates change. Reflection preserves size, angles, and shape, but reverses orientation relative to the axis. Recognizing the line of reflection helps in mapping shapes accurately.