allysonserrano27
allysonserrano27 allysonserrano27
  • 16-12-2020
  • Mathematics
contestada

For what value of k will the points (3,5) and (9,k) represent a proportional relationship?

Respuesta :

jimrgrant1 jimrgrant1
  • 16-12-2020

Answer:

k = 15

Step-by-step explanation:

For a proportional relationship to exist then for both points

k = [tex]\frac{y}{x}[/tex] ← k is the constant of proportion, that is

[tex]\frac{5}{3}[/tex] = [tex]\frac{k}{9}[/tex] ( cross- multiply )

3k = 45 ( divide both sides by 3 )

k = 15

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