Math 20-2 Quadratic Functions Flashcards

Vocabulary flashcards reviewing quadratic functions, key graph features, and lessons from Math 20-2 at Centennial High School.

Vertex of $f(x) = x^2 - 2x - 3$

The turning point of the quadratic function, located at $(1, -4)$.

y-intercept of $f(x) = x^2 - 2x - 3$

The point where the graph crosses the y-axis, located at $(0, -3)$.

x-intercepts of $f(x) = x^2 - 2x - 3$

The points where the graph crosses the x-axis, located at $(-1, 0)$ and $(3, 0)$.

Axis of Symmetry of $f(x) = x^2 - 2x - 3$

The vertical line dividing the parabola symmetrically, given by the equation $x = 1$.

Effect of Changing the b-value on the y-intercept

In equations such as $y = x^2 - 2x - 3$, $y = x^2 - 0x - 3$, and $y = x^2 + 2x - 3$, changing the b-value results in no change to the y-intercept.

Axis of Symmetry

A vertical line that splits a quadratic graph into two symmetric halves.

Vertex

The minimum or maximum turning point of a parabola.

x-intercepts

The point or points where a graph intersects the x-axis.

y-intercept

The point where a graph intersects the y-axis.

Math 20-2 - Lesson 1.2

Lesson covering the standard form of a quadratic function.

Math 20-2 - Lesson 1.3

Lesson covering the factored form of a quadratic function.