Quadratic Inequality Lesson

When graphing an inequality, you used a closed dot of shaded circle when you use which symbols?

• Less than, greater than

• Less than or equal to, greater than or equal to

• Equal

• Unequal

When graphing an inequality, you used an open dot of hollow circle when you use which symbols?

• Less than, greater than

• Less than or equal to, greater than or equal to

• Equal

• Unequal

It is similar to quadratic equation, except instead of an equal sign there’s an inequality sign.

• Linear Inequality

• Quadratic Equation

• Quadratic Inequality

• Quadratic Function

What do we call these symbols < , > , ≥ , ≤ ?

• Equality Symbols

• Inequality Symbols

• Unequality Symbols

• Signs

What is the standard form of quadratic inequality?

• ax² + bx + c < 0

• ax² + bx < -c

• ax² + bx < c

• ax² + c < bx

Solve x² - x - 12 < 0.

• x = 4, x = -3

• x = 4, x = 3

• x = -4, x = 3

• x = -4, x = -3

Solve x² + 9x + 13 < -7.

• x = -4, x = -5

• x = 4, x = 5

• x = -4, x = 5

• x = 4, x = -5

Graph x² - x - 12 < 0.

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Graph x² + 9x + 13 > -7

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