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Questions and Answers
Which type of equations are called linear equations in the variable x?
Which type of equations are called linear equations in the variable x?
- Equations of the form ax^2+bx+c=0
- Equations of the form bx+c=0
- Equations of the form x^2+bx+c=0
- Equations of the form ax+b=0 (correct)
What are the two operations on an equation that always result in a new equation equivalent to the original one?
What are the two operations on an equation that always result in a new equation equivalent to the original one?
- Multiplying the same expression by a nonzero real number into both sides
- Dividing the same expression by a nonzero real number from both sides
- Subtracting the same expression from both sides
- Adding the same expression to both sides (correct)
What are the operations called that are sometimes called elementary transformations?
What are the operations called that are sometimes called elementary transformations?
- T.4 and T.5
- T.1 and T.2 (correct)
- T.3 and T.4
- T.2 and T.3
Which type of equations are equivalent if they have the same solution set?
Which type of equations are equivalent if they have the same solution set?
What can be multiplied into both sides of an equation according to T.2?
What can be multiplied into both sides of an equation according to T.2?
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