If y varies directly as x, and y is 12 when x is 1. 2, what is the constant of variation for this relation?.

24 or 10

Step-by-step explanation:

unluckily, when you copied the text you did not paste well the value of x, but I assume it is 1.2 or 1/2

for the first value, the K (costant of variation) is 24, while for the second is 10, as the photo explains

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.