Hed an additional sheet of paper, if needed. Standard 7.RP. A.2.B: Identify the constant of proportionality (unit rate) in tables, graphs, equations, diagrams, and verbal
descriptions of proportional relationships.
Two relations are described below. Determine whether each describes a directly proportional
relationship or not. If proportional, identify the constant of proportionality.
Relation A: The value of y is equal to the sum of x and 2
Relation B: The value of y is equal to 2 times x
Strategy: Create tables to determine if the relationships are proportional or not

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

ratio is 2 : 9

the answer is three

13.5 : 3

answerim :

n

step-by-step explanation:

im not sure but my dad knows