daniyalrasor daniyalrasor
  • 14-01-2021
  • Mathematics
contestada

y is directly proportional to (x-1)2.
When x = 3, y = 24.
Find y when x = 6.

Respuesta :

elcharly64
elcharly64 elcharly64
  • 14-01-2021

Answer:

y = 150

Step-by-step explanation:

Proportions

It's given y is directly proportional to the square of x-1. It can be expressed as:

[tex]y=k(x-1)^2[/tex]

Where k is the constant of proportionality. We know y=24 when x=3. Substituting:

[tex]24=k(3-1)^2[/tex]

[tex]24=k(2)^2=4k[/tex]

Solving for k:

k = 24/4 = 6

Thus, the equation is:

[tex]y=6(x-1)^2[/tex]

When x=6:

[tex]y=6(6-1)^2=6(5)^2=6*25[/tex]

y = 150

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