Question

Only identify which of the given equations is linear equation in two variables and which is

not : x2 – 3y = 4 ; 7x = 9y + 5​

Answer 1

Answer:

ii) 2nd option

Step-by-step explanation:

linear equation in two variables means

a) highest power should be 1

b) Only two variables

Therefore- standard form of linear equation in two variable is= (x+y+2=0)

Hence

i) x2-3y= 4

= x2-3y-4=0............(forming the equn in standard form)

Therefore above equation has two variables but highest power is 2 . Hence above equation is not a linear equation in two variables.

ii) 7x=9y+5

= 7x-9y-5=0.............( forming the equation in standard form)

Therefore above equation has two variables and highest power is one. Hence above equation is a linear equation in two variables.

Hope It helped you.