Level 237
Level 239

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first difference

values determined by subtracting consecutive y-values in a table when the x-values are consecutive integers

Solution

The value or values that make an equation or inequality true.

intersection point

the ordered pair which satisfies both functions, where the functions intersect on the graph

solve an inequality

to determine the values of the variable which makes the inequality true.

compound inequality

Two separate inequalities joined by AND or OR.

solution of a compound inequality

The part or parts of the solutions which satisfy both inequalities

conjunction

Two statements joined by the word AND. Only true when both statements are true.

disjunction

Two statements joined by the word OR. Only false when both statements are false.

opposites

two numbers that have the same absolute value but have different signs

absolute value

The distance of a number from zero on a number line; shown by | |

linear absolute value equation

An equation in the form |x + a | = c

linear absolute value inequality

an inequality in the form | x+a | < c

equivalent compound inequality

a compound inequality that is the equivalent of an absolute value inequality