Quadratic Inequalities

Front

In graphing quadratic inequality, we use ______________ when the given inequality symbol is > and <.

Back

Hallow dot

Front

Which of the following is the correct interval of x² + 2x -24 > 0?

Back

x > 4

Front

A statement that one mathematical expression is greater than, greater than or equal to, less than or less than or equal is called __________.

Back

Inequality

Front

Give the correct factor of x² -12x + 27.

Back

(x - 3)(x - 9)

Front

Which of the following does not belong to the group? x² - 3x + 4 > 0, 2x² > 4, x² + 6x < 3, x³ + 4x + 8 < 0.

Back

x³ + 4x + 8 < 0

Front

What is the standard form of a quadratic equation?

Back

ax² + bx + c = 0, where a ≠ 0.

Front

What does the graph of a quadratic inequality represent?

Back

The region of the coordinate plane that satisfies the inequality.

Front

What is the vertex of a quadratic function?

Back

The highest or lowest point on the graph of the quadratic function.

Front

How do you determine if a quadratic opens upwards or downwards?

Back

If a > 0, it opens upwards; if a < 0, it opens downwards.

Front

What is the axis of symmetry in a quadratic function?

Back

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