Third Quarter Review

A parabola has a vertex at (-3,2).
Where is the axis of symmetry?

• y = -2

• x = 3

• x = -3

• y = 2

Identify the 'b' value: y = 16x² -8x -24

• 16

• -8

• 8

• -24

Identify the 'a' value: y = 16x² -8x -24

• 16

• 8

• -8

• -24

The discriminant is

• aX² + bX + c

• b - 4ac

• b² - 4ac

• b² + 4ac

In the equation y = x² +5x +7, match each leading coefficient with its correct letter.

• a=0, b=5, c=7

• a=1, b=5, c=7

• a=7, b=5, c=1

How many x-intercepts does it have?

• 0

• 1

• 2

• 5

How many x-intercepts does it have?

• 0

• 1

• 2

• 4

What is the discriminant of -2x² − x − 1 = 0

• 76

• -7

• 9

• none of these

find x for
2x²-8x-24=0

• x= 6, -2

• x= 2, -6

• x= 4, 2

• x= 2, 6

• a = 2 , b = 3, c = -5

• a = 2, b = -3, c = 5

• a = 2, b = -3, c = -5

• a = -2, b = 3, c = 5