Write the equation 4x+2y=-2 as a function f(x).

Question

Thanks for any help

Answer 1

4x+2y=-2

we have to find out f(x) function

so,

    4x+2y=-2

=> 4x-4x+2y=-2-4x(add-4x both side

=> 2y=-2-4x

=> 2.y=2(-1-2x)

=> y= -1-2x

=>y+1+2x=-1-2x+1+2x

=>2x+y+1=0

function

f(x)= 2x+y+1=0

     

Answer 2

In order to find f(x) we need to make h the subject of this equation that we are given

 

4x + 2y = - 2

 

2y = -2 - 4x

 

divide by 2 throughout the entire equation

 

y = -1 -2x

 

so 

 

f(x) = -1 - 2x