Review 12.1 - 4th pd

Front

What is a system of equations?

Back

A set of two or more equations with the same variables. The solution is the point(s) where the equations intersect.

Front

How do you solve a system of equations using substitution?

Back

1. Solve one equation for one variable. 2. Substitute that expression into the other equation. 3. Solve for the remaining variable.

Front

Back

(-2, 11)

Front

What does it mean for an ordered pair to be a solution to a system of equations?

Back

It means that when the values of the ordered pair are substituted into both equations, they satisfy both equations.

Front

What is the square root of 24?

Back

Front

What is the square root of 125?

Back

Front

What is an inequality?

Back

A mathematical statement that compares two expressions and shows that one is greater than, less than, or not equal to the other.

Front

How do you graph a linear inequality?

Back

1. Graph the corresponding equation as a line. 2. Use a dashed line for < or >, and a solid line for ≤ or ≥. 3. Shade the region that satisfies the inequality.

Front

What is the difference between a linear equation and a linear inequality?

Back

Front

Back

Graph the inequalities to find the solution region.