It looks like you've uploaded an image of a geometry problem involving a reflection across a line. Based on the image:

• There's a set of triangles, one in blue and one in pink, on a coordinate plane.
• The dotted lines likely represent perpendiculars from points on the triangles to the line of reflection.
• The reflection line is indicated, and it's given that its slope is $2$.
• The slopes of the dotted lines are also $2$, meaning they are parallel to the reflection line.

It seems you are working with reflections and trying to confirm slopes. Since you are already given that the slope of the line of reflection and the dotted lines are both $2$, this might imply that the line of reflection and the dotted lines form a specific type of geometric transformation (reflection or glide reflection).

Would you like me to help explain the steps to solve a reflection problem like this?

Here are five relevant questions to deepen your understanding:

1. What are the properties of a line reflection on a coordinate plane?
2. How do you determine the equation of a line given its slope and a point on the line?
3. What happens to the coordinates of a point when it is reflected across a line?
4. How do you verify the reflection of a figure on a coordinate plane?
5. How do you find the perpendicular distance from a point to a line?

Tip: When reflecting across a line, the line of reflection is equidistant from the original point and its reflected image.