Multiple choice

Which of the following equations is a linear equation?

  1. 3x + 2yx2 = 4

  2. 2x + 3y2 = 4

  3. 2x + 2y + x2 = 7

  4. x = 4
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The highest power of the term in the given equation is called degree. An equation having degree one, is called a linear equation. $\because$x = 4 is an equation of degree one, therefore it is a linear equation.

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