The unchanging value of the ratio between two proportional quantities is
the constant of proportionality.
the constant rate.
the x-value of an ordered pair.
the y-value of an ordered pair.

Respuesta :

Answer:

the right answer is the constant of proportionality

Step-by-step explanation:

The unchanging value of the ratio between two proportional quantities is the constant of proportionality.

INTERPRETATION----

Lets say a is directly proportional to b and k is a constant.

  • This can be expressed as;
  • a ∝ kb
  • This means that as the value of a rises, the value of b rise too.
  • k (the constant of this proportionality remain the same)

                                         OR

If two variables are related and this relationship is that there is a constant ratio between them, then we are talking about proportionality. There are two types of proportionality.

1) Direct Proportionality:

In a mathematical language this is given by this equation:

[tex]y = kx[/tex]

where k is in fact this constant of proportionality. If x increases, y also increases at the same rate.

On the other hand,  If x decreases, y also decreases at the same rate.

2) Inverse Proportionality:

In a mathematical language this is given by this equation:

[tex]y=\frac{k}{x}[/tex]

where k is also called the constant of proportionality. If x increases, y decreases at the same rate. On the other hand,  If x decreases, y increases at the same rate.

Learn more about Proportional quantities on:

brainly.com/question/18170686

#SPJ2