Question

Wich equation is non proportionala)y=2x-6b)y=-2xc)=0.5x

Answer 1

the proportional equation contains the form

`y=mx`

they don't have constant C

like y = mx+ c ( non proportional equation)

so compair the given equation with

y= mx (proportional form)

we have

y= 2x -6 (non proportional)

y= -2x (proportional)

y=0.5x (proportional)

proportional mean y Is changing with change in x but with constant rate.

`y\infty x`

we remove proportionality

`y=kx`

here, k is proportianilty constant.

for example

if we have two-equations.

y = 2x and y = 2x+1

put x= 1 in both equation

y = 2(1) and y = 2(1)+1

y= 2 and y= 3

now put x= 2 in both

y= 2(2) and y = 2(2)+1

y = 4 and y = 5

so you can see that in firs