Determine whether the relationship between the circumference of a circle and its diameter is a direct variation. if so, identify the constant of proportionality. justify your response.

The relationship between the circumference of a circle and its diameter represent  a direct variation

The constant of proportionality is equal to

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form or

The circumference of a circle is equal to

Let

C=y

D=x

substitute

therefore

The relationship between the circumference of a circle and its diameter represent  a direct variation

The constant of proportionality is equal to

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source:

idk

step-by-step explanation:

use that smart brain