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Questions and Answers
Which of the following equations is NOT a linear equation?
Which of the following equations is NOT a linear equation?
- $x^2 + 3x - 7 = 0$ (correct)
- $4y - 2 = 3x$
- $5x - 2y = 7$
- $2x + 3y = 5$
What is the defining characteristic of a linear equation?
What is the defining characteristic of a linear equation?
- Includes variables raised to powers greater than 1
- Cannot involve more than two variables
- Always has exactly one solution
- Power of the variable is always 1 (correct)
Which of the following equations is a linear equation in two variables?
Which of the following equations is a linear equation in two variables?
- $xy = 8$
- $x^2 + y^2 = 1$
- $3x - y = 7$ (correct)
- $4x - 5 = 2y$
If $4x + 5y = 20$, what is the value of $y$ when $x = 3$?
If $4x + 5y = 20$, what is the value of $y$ when $x = 3$?
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How many solutions can a consistent system of linear equations in two variables have?
How many solutions can a consistent system of linear equations in two variables have?
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