carinagrossman
carinagrossman carinagrossman
  • 15-11-2020
  • Mathematics
contestada

Find the value of k if it is known that the graph of y=kk goes through A (4,-80)
Please explain, I don’t get this concept and really need help!

Respuesta :

erinna erinna
  • 23-11-2020

Note: Consider the equation is [tex]y=kx[/tex] instead of [tex]y=kk[/tex].

Given:

The graph of [tex]y=kx[/tex] goes through A(4,-80).

To find:

The value of k.

Solution:

We have,

[tex]y=kx[/tex]

It is passes through the point A(4,-80). It means, the point satisfy the equation.

Putting x=4 and y=-80, we get

[tex](-80)=k(4)[/tex]

Divide both sides by 4.

[tex]\dfrac{-80}{4}=k[/tex]

[tex]-20=k[/tex]

Therefore, the value of k is -20.

Answer Link

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