Question

Which of the following are linear equation
1. 3x+5=7
2.4x²-5x+9=0
3. 2x+7=8
4. ax²+bx+c=0
Plzz say the correct answer with clear explanation

Answer 1

Answer:

1. Is the linear equation in one variable

2. No it is not a linear equation

3.yes it is linear equation in one variable

4.No it is not linear equation

Hope these help you.....

Answer 2

option 4 because a, b, c are different variable and highest degree is 2 so if we will represent this on graph it will be a straight line that's why it is linear equation in 2 variable