Algebra 2 Midterm Review

The slope (m) is calculated using the formula: m = (y2 - y1) / (x2 - x1).

The y-intercept is the point where the line crosses the y-axis, represented as (0, b) in the equation y = mx + b.

Use the distributive property (FOIL method): ac - ad - bc + bd.

Factoring involves breaking down an expression into simpler components, while expanding involves multiplying out the components.

The difference of squares formula states that a^2 - b^2 = (a + b)(a - b).

Isolate x on one side of the equation using inverse operations.

The standard form is Ax + By = C, where A, B, and C are integers.

The quadratic formula is used to find the roots of a quadratic equation: x = (-b ± √(b² - 4ac)) / (2a).

Two lines are parallel if they have the same slope and will never intersect.

Completing the square involves rewriting a quadratic in the form (x - p)² = q to find its vertex.