Help please help me?

Triangle dog was rotated to create triangle d'o'g'. describe the transformation using details and degrees. (10 points)

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11

If you apply the changes below to the linear parent function f(x)=x what is the equation of the new function vertically stretched by a factor of 3 flip over the x axis