Question

using the pencil, plot the reflection of point a across the y - axis.

Explanation:

Step1: Identify coordinates of A

Point A is at (8, 7) (from graph: x=8, y=7).

Step2: Apply y - axis reflection rule

Reflection over y - axis: \((x,y)\to(-x,y)\). So, \((8,7)\to(-8,7)\).

Step3: Plot the reflected point

Plot the point with x - coordinate - 8 and y - coordinate 7 on the graph.

Answer:

The reflection of point A(8, 7) across the y - axis is the point (-8, 7), which should be plotted at x = - 8, y = 7 on the coordinate plane.