For a quadratic function where the vertex is at (-5,7), where is the axis or line of symmetry located??

-5

Step-by-step explanation:

The axis of symmetry is the x- axis of the vetex.

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.

it would open into a square depending on the type of envelope i’m not sure about the second part