X-7y=4,5x-4y=-11 solve system of equations by substitution

Polygons efgh and e′f′g′h′ are shown on the coordinate grid: what set of transformations is performed on efgh to form e′f′g′h′? a. a translation 1 unit to the left followed by a 90-degree counterclockwise rotation about the origin b. a translation 1 unit to the right followed by a 90-degree counterclockwise rotation about the origin c. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the right d. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the left

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?

‼️‼️‼️10 points‼️‼️‼️ me it’s important‼️‼️‼️‼️‼️