Question

what are the coordinates of point ( l ) after ( \triangle jkl ) is reflected across the ( x )-axis?
( l(square,square) )

Explanation:

Step1: Recall the reflection rule

When a point \((x,y)\) is reflected across the \(x\) - axis, the rule is \((x,y)\to(x, - y)\).

Step2: Apply the rule to point \(L\)

For point \(L(2,-4)\), here \(x = 2\) and \(y=-4\). Using the rule \((x,y)\to(x, - y)\), we substitute \(y=-4\) into \(-y\). So \(-y=-(-4) = 4\).

Answer:

\((2,4)\)