Capter 9 review

What type of graph is this?

• Exponential

• Quadratic

• Linear

• Absolute Value

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3

• a = 4, b = -8, c = 3
• a = 4, b =-8, c =-3
• a = 4, b = 8, c = 3
• a = 4, b = 8, c = -3

b² - 4ac would equal: y = 2x² -x -3

• 25
• -23
• -25
• 0

Tags

CCSS.HSA-REI.B.4B

Solve using the quadratic formula: 2x² + 7x - 15 = 0

• -1.5 or 5

• No Solution

• -5 or 1.5

• 0.7 or 5

• A
• B
• C
• D

Tags

CCSS.HSA-REI.B.4B

The discriminant is

• aX²  + bX  +  c
• b - 4ac
• b² - 4ac
• b² + 4ac

Tags

CCSS.HSA-REI.B.4B

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

• 76

• -7

• 9

• none of these

Tags

CCSS.HSA-REI.B.4B

Solve:
x² - 6x - 7 = 0

• x = -1 & x = 7
• x = -3 & x = -1
• x = 5 & x = 6
• x = 1 & x = 7

Tags

CCSS.HSA-REI.B.4B

Solve:
n² + 6n - 27 = 0

• x = -3 & x = 10
• x = 5 & x = 14
• x = -12 & x = 4
• x = -9 & x = 3

Tags

CCSS.HSA-REI.B.4B

The equation y = x² + 3x - 18 is graphed.  Based on this graph, what are the roots of the equation x² + 3x - 18 = 0?

• -3 and 6
• 0 and -18
• 3 and -6
• 3 and -18