CCSS.Math.Content.HSA.REI.B.4

If the graph of a quadratic does not intercept the x-axis at any point, then it has:

• 1 Real Solution
• 2 Real Solutions
• Half a Solution
• No Real Solution

Tags

CCSS.Math.Content.HSA.REI.B.4

9k² = 225

• 4
• 4, -4
• 25, -25
• -5, 5

Tags

CCSS.Math.Content.HSA.REI.B.4

ax²+bx+c=0  is the standard form of a quadratic equation.

• True
• False

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve by factoring: 5x² + 13x + 6 = 0

• x = -2 and x = -3/5
• x = 2 and x = 3/5
• x = -2 and x = 3/5
• x = 2 and x = -3/5

Tags

CCSS.Math.Content.HSA.REI.B.4

The discriminant of a quadratic equation is 0.  How many solutions will it have?

• 2 Real Solutions
• 1 Real Solution
• No Real Solutions
• Cannot be determined

Tags

CCSS.Math.Content.HSA.REI.B.4

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

Tags

CCSS.Math.Content.HSA.REI.B.4

a² + b² = c^{2
a = 9 b = 40}

• c = 41
• c = 65
• c = 25
• c = 5

Tags

CCSS.Math.Content.HSA.REI.B.4

The positive real root of the equation : 64x² - 1 = 0 is ______

• 8
• ⅛
• 1⁄16
• 1⁄4

Tags

CCSS.Math.Content.HSA.REI.B.4

A function has a discriminant of -3.
______________
How many x-intercepts does it have?

• 0
• 1
• 2
• 3

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve.
n² - 5 = -4

• n = ±√9
• n = ±3
• n = ±1
• No real solution

Tags

CCSS.Math.Content.HSA.REI.B.4