Answer:
The line crosses the x-axis at the point (-3.5,0).
Substitute the values into the equation
2(2)+4(-1)-5(1)
4-4-5
-5
YES! quite easily.
I hope you can see the two pairs of corresponding angles between the parallel lines. they'll be equal
and then there's a pair of vertically opposite angle at centre.
that means all pairs of corresponding angles are equal, thus, triangles are similar by AAA