Given f(x) and g(x) = f(k⋅x) use the graph to determine the value of k.

Ineed with number 17 i don’t get it at alll

Match the term on the left with its image or description on the right. match term definition diameter a) circle a and a line segment connecting points b and c which are on the circle. circumference b) circle a and a line segment connecting points b and c which are on the circle. radius c) a piece of the circumference of a circle secant d) two circles that share the same center. concentric circles e) the distance around a circle arc f) a segment between two points on a circle that passes through its center

What rotation was applied to triangle def to create d’e’f’?