Math Flashcard

Front

What is the standard form of a quadratic equation?

Back

The standard form of a quadratic equation is ax² + bx + c = 0, where a, b, and c are constants and a ≠ 0.

Front

What are the roots of the quadratic equation q² + 14q + 48?

Back

The roots of the quadratic equation q² + 14q + 48 are q = -6 and q = -8.

Front

How do you find the roots of a quadratic equation using factoring?

Back

To find the roots using factoring, express the quadratic in the form (q - r1)(q - r2) = 0, where r1 and r2 are the roots.

Front

What is the quadratic formula?

Back

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

Front

What does the discriminant of a quadratic equation tell us?

Back

The discriminant (b² - 4ac) indicates the nature of the roots: if > 0, two real roots; if = 0, one real root; if < 0, no real roots.

Front

What is the vertex of a parabola?

Back

The vertex of a parabola is the highest or lowest point on the graph, found at the point (h, k) in the vertex form y = a(q - h)² + k.

Front

What is the axis of symmetry in a quadratic function?

Back

The axis of symmetry is a vertical line that divides the parabola into two mirror images, given by the formula x = -b/(2a).

Front

What is the significance of the leading coefficient in a quadratic function?

Back

The leading coefficient (a) determines the direction of the parabola: if a > 0, it opens upwards; if a < 0, it opens downwards.

Front

How do you determine if a quadratic function is a maximum or minimum?

Back

If the leading coefficient is positive, the function has a minimum; if negative, it has a maximum.

Front

What is the factored form of a quadratic equation?

Back

The factored form is expressed as a(q - r1)(q - r2), where r1 and r2 are the roots of the equation.