Quadratic Inequalities Quiz

What type of line is used when the inequality is 'greater than or equal to'?

• No line

• Solid line

• Dashed line

• Dotted line

When graphing a quadratic inequality, where do you shade if the inequality is 'less than'?

• Outside the curve

• On the curve

• Below the curve

• Above the curve

How do you find the x-coordinate of the vertex in a quadratic equation?

• Using the formula -b/2a

• Using the formula b/2a

• Using the formula -a/2b

• Using the formula a/2b

What is the y-intercept of the first quadratic inequality discussed?

• -4

• 0

• 3

• 5

In the second example, what is the vertex of the quadratic inequality?

• (-1/4, 3/2)

• (3/2, -1/4)

• (3/2, 1/4)

• (1/4, 3/2)

What type of line is used when the inequality is 'not equal to'?

• Solid line

• Dashed line

• No line

• Dotted line

In the third example, what is the vertex of the quadratic inequality?

• (9, 0)

• (2, 3)

• (3, 2)

• (0, 9)

What is the y-intercept when x is set to 0 in the third example?

• -12

• 9

• 0

• 3

What does a vertical stretch of -3 indicate in the graph of a quadratic inequality?

• The graph is reflected and stretched vertically by a factor of 3

• The graph is stretched vertically by a factor of 3

• The graph is compressed vertically by a factor of 3

• The graph is stretched horizontally by a factor of 3

Where do you shade if the inequality is 'greater than'?

• On the curve

• Below the curve

• Outside the curve

• Above the curve