ACT Math (Algebra)

Absolute Value : The distance between 0 and the point representing the real number.

Absolute Value Function : When graphed this function forms a v shape.

Coefficient : The number part when a number and a variable are multiplied together in a term is called the _____.

Combine : To simplify expressions, we often ___ like terms.

Coordinate Plane : This is a plane with two axes as a frame of reference. The x-axis is a horizontal line and the y-axis is perpendicular to it (i.e., the y-axis is vertical). The intersection of the two axes is called the origin.

Coordinates : The pair of numbers giving the location of a point are called its ___.

Difference : The answer when a subtraction problem is performed.

Direct Variation : The relationship between two variables such that y = kx if k is a nonzero number. Also, as one quantity increases, the second quantity increases or as one quantity decreases, the second quantity decreases.

Equivalent : Expressions that simplify to the same expression are called ____.

Evaluate : This is what is done to a variable expression when numbers are substituted for the variable(s) and a final numerical answer is calculated.

Factor : A number which divides evenly into a given number is called a ___ of that number.

Factored : A polynomial that is written as a product has been ______.

Greater Than : This symbol ≥ means that one number is ____ ____ or equal to another number. (2 words)

Inequality : This is a mathematical sentence written with a greater than, a less than sign, or a NOT equal to sign.

Line : This is the straight path connecting two points and extending infinitely in both directions.

Line Graph : A graph that is represented by points connected by segments.

Negative Slope : A line extending from the upper left to the lower right has this type of slope.

Number Line : This is a line representing the set of all real numbers.

Perfect Square : A number whose square roots are integers or quotients of integers.

Plane : This is a flat surface extending in all directions.

Power : The number to which a base is raised to is called the ___. This tells you how many times to multiply the base together.

Product : This is the answer in a multiplication problem.

Quotient : [[xa%DIV%xb]] = xa-b. This is the _____ of powers property.

Radical : The symbol for a square root is called the ______ sign.

Rational Function : This type of function has the form f(x) = p(x)/q(x), where p and q are polynomial functions. It often has vertical and/or horizontal asymptotes.

Rise : The vertical change between 2 points.

Simplify : When we rewrite an expression so that it has no grouping symbols and all of the like terms have been combined, we ___ it.

Slope : The ___ tells how fast a line rises or falls between any two points on that line. Algebraically it is expressed as (y2 - y1)/ (x2 - x1) for the line passing through (x1, y1) and (x2, y2).

Solve : The algebraic process you use to isolate a variable in order to find what values, numbers, etc. will make an equation true. You _____ the equation.

Square : A rhombus with four right angles.

Undefined Slope : Vertical lines have _________ slope.

Unit : A fixed amount used as a standard of measurement is called a ___.