8th grade Math Vocabulary: Ch 1-4

The final step of an equation yields a single solution, such as x=2

One of three equal factors of a number

The y-coordinate of the point where the line crosses the y-axis.

Terms that contain the same variable(s) to the same powers.

An equation with a graph that is a straight line. Slope intercept form of this is y=mx+b.

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To multiply a sum by a number, multiply each addend by the number outside the parentheses.

An algebraic model that can be used to find the exact solution of a system of equations.

Pairs of operations that undo each other.

The number next to the variable.

A symbol,usually a letter, used to represent a number in mathematical expressions or sentences.

The final step of an equation yields a solution that is true, such as 4=4

The final step of an equation yields a solution that is false, such as 3≠5

A function whose rate of change is not constant.The graph of this function is not a straight.

The rate of change between any two points on a line.

A relationship that has a straight-line graph.

A mathematical expression used to represent a decimal number between 1 and 10 multiplied by ten