How to Evaluate Expressions by Substituting Values
Learn what it means to evaluate algebraic expressions, how to substitute values step by step, and what mistakes to avoid.
Math Word of the Day comes from the Math Dictionary written by Mathnasium.
Sunday, December 27
A measure of space, especially width, height, or length.

Monday, December 28
A conclusion proved through deductive reasoning.

Tuesday, December 29
Two variable quantities vary directly if the ratio of one to the other remains constant. A direct variation equation usually takes the form of y = kx, but it can also be written in the form of k = y/x or x = y/k. The graph of a direct variation equation is linear and passes through the origin.

Wednesday, December 30
The angular position of two points with respect to each other.

Thursday, December 31
To the right usually denotes a positive change. To the left usually denotes a negative change.
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Friday, January 1
Instruction, teaching, learning, knowledge.

Saturday, January 2
The amount deducted or subtracted from a cost or price.

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