Math Problem Statement
A point P(-3, -7) is reflected across a line l. The image of the point is P'(-3, 7). Complete the statement.
Solution
The point is reflected across the line (the x-axis) because the x-coordinate of is the same as the x-coordinate of and the y-coordinate of is the opposite of the y-coordinate of .
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Math Problem Analysis
Mathematical Concepts
Coordinate Geometry
Reflections in Geometry
Formulas
Reflection of a point across a line
Theorems
Properties of reflections in geometry
Suitable Grade Level
Grades 7-10