Question

Which of the following represents a linear equation?

• A. $\frac{3x}{4}=3+y$
• B. 4 + 6 = 10
• C. $3x^2+5y=0$
• D. $5y^3+y^2+3=9$

Answer 1

The correct option is A $\frac{3x}{4}=3+y$

In a linear equation, the highest power of any variable is 1. In $\frac{3x}{4}=3+y$ the highest power of x is 1.
In 4 + 6 = 10 ,there is no variable, hence it is not an equation.
The following graphs represent the given equations.