Atriangle is reflected across line l and then line m. if the lines intersect, what kind of isometry is this composition of reflections? a-translation b- rotation c-reflection d- glide reflection

The Triangle is reflected across two lines.

 A composition means two or more transformation has taken place.

When the composition of two reflections between Intersecting line takes place, we consider it as equivalent to Rotation.

An Isometry means neither the change in shape,size, nor Angles (Interior as well as Exterior), that is two shapes after transformation are Congruent.

This kind of Isometry which is composition of reflections is called  

 Option D: Glide reflection

clock

step-by-step explanation:

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.