REVIEW Equations and Inequalities

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing variables and constants.

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions, showing that one is greater than, less than, or not equal to the other.

Front

What does it mean for two angles to be congruent?

Back

Two angles are congruent if they have the same measure.

Front

How do you solve for a variable in an equation?

Back

To solve for a variable, isolate the variable on one side of the equation using inverse operations.

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

What is the y-intercept of a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, represented by the value of b in the slope-intercept form.

Front

How do you represent a real-world situation with an equation?

Back

Identify the variables, constants, and relationships in the situation, then formulate an equation that models the scenario.

Front

What is the difference between a function and a relation?

Back

A function is a specific type of relation where each input has exactly one output.

Front

What does it mean to graph an equation?

Back

Graphing an equation means plotting all the points that satisfy the equation on a coordinate plane.

Front

How do you determine if a point lies on the graph of an equation?

Back

Substitute the x and y coordinates of the point into the equation. If the equation holds true, the point lies on the graph.