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Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the formula for evaluating a quadratic expression?
Back
A quadratic expression can be evaluated using the formula ax^2 + bx + c, where a, b, and c are constants.
2.
FLASHCARD QUESTION
Front
How do you substitute a value into an expression?
Back
To substitute a value into an expression, replace the variable with the given value and then simplify the expression.
3.
FLASHCARD QUESTION
Front
What is the value of the expression 2x + x^2 when x = 3?
Back
The value is 15.
4.
FLASHCARD QUESTION
Front
What is the value of the expression 2x^2 - 5y + 3 when x = 3 and y = 3?
Back
The value is 6.
5.
FLASHCARD QUESTION
Front
How do you evaluate the expression 30 - z when z = 31?
Back
Substituting z with 31 gives 30 - 31 = -1.
6.
FLASHCARD QUESTION
Front
What is the result of evaluating the expression 11m when m = 10?
Back
The result is 110.
7.
FLASHCARD QUESTION
Front
What is the difference between a linear expression and a quadratic expression?
Back
A linear expression has a degree of 1, while a quadratic expression has a degree of 2.
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