Which equation represents a vertical line?
y=x+1,
y=2
x=2
x=y+2

It is the 3rd one!

Step-by-step explanation:

Not the first one

Not the 2nd

Its the third

not the fourth

x=2

Step-by-step explanation:

Vertical line also known as undefined is always x = #

Therefore in this case x=2 is the answer

Horizontal is y = #

which a horizontal line, in this case, would be y=2

Hope this helps.

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)