For a proof by induction of the math statement below, identify the correct step for proving the theorem is true for n = k + 1.
1+3++(2n-1)=n^2

If , then is true.

Suppose the equation holds for , so that

Then if , we have

as required, so the equation holds for all .

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.