Find the gradient of lines A and B.

Step-by-step explanation:

First choose two points for each line eg (-1,3) and (1,-1) then introduce the formula difference in y/difference on x which is -1-3/1--1=-2 that's for b then do the rest to a

parallel and congruent

step-by-step explanation:

the movement of translation is linear.   these have the same translation because you are using the same rule for each point of the triangle so you will see the same slope being used to get from a point on the triangle to its image.

same slope!   you should think parallel when you see those 2 word together (well unless it's the same line but it can't be because we are coming from different points here)

congruent! because each point is being moved the same distance.