DCA 1 Test Review (equ, ineq, real numbers)

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing one or more variables.

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions, showing that one is greater than, less than, greater than or equal to, or less than or equal to the other.

Front

What are real numbers?

Back

Real numbers include all the numbers on the number line, including rational numbers (like integers and fractions) and irrational numbers (like √2 and π).

Front

How do you solve a linear equation?

Back

To solve a linear equation, isolate the variable on one side of the equation using inverse operations (addition, subtraction, multiplication, division).

Front

What does it mean to graph an inequality?

Back

Graphing an inequality involves shading a region of the graph that represents all the solutions to the inequality, using a dashed line for < or > and a solid line for ≤ or ≥.

Front

Back

Front

How can you represent the situation where Nancy and Margie read books using an equation?

Back

Front

What is the inequality that represents when Greg will have more money than Lauren?

Back

Front

Back

Front

How do you find the point where two linear functions intersect?

Back

Set the two equations equal to each other and solve for the variable to find the intersection point.