Algebra STAAR 2.0 Review 4

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

What is the quadratic formula?

Back

Front

What does the vertex of a parabola represent?

Back

The highest or lowest point of the parabola, depending on its orientation.

Front

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

Back

Front

How do you find the slope of a line given two points?

Back

Front

What is the maximum value of a quadratic function?

Back

The highest point on the graph of the function, found at the vertex if the parabola opens downwards.

Front

What is an inequality?

Back

A mathematical statement that compares two expressions, indicating 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 linear equation. 2. Use a dashed line for < or >, and a solid line for ≤ or ≥. 3. Shade the appropriate region.

Front

What does it mean for a function to be quadratic?

Back