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

In the equation x² – 6x + 8 = 0, what are the solutions for x?

• {4,2}
• {4,-2}
• {-4,2}
• {-4,-2}

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

If the discriminant is negative, how many solutions and of what type?

• 1 real solution
• 2 irrational solutions
• 2 complex solutions

Tags

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

How many solutions does the equation 4x² + 4x + 1 = 0 have?

• 0
• 1
• 2
• More than 2

Tags

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

Using the graph solve the equation
-x²-2x+3=-5.

• {-3,-1}
• {-2,0}
• {-4,2}
• {-1,4}

Tags

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

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form
• Write down: a=1, b=6, c=-13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

Tags

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

What are the solutions?

• -2, 1
• 1, 2
• -1,2
• 0,-4

Tags

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

What is the maximum height of the parabola?

• h = 0.563

• h = 10.063

• h = 5

• h = 1.356

Tags

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

What are the zeros of f(x) = m²-9m+20?

• 4, 5

• -4, -5

• 2, 10

• -2, -10

Tags

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

Solve by factoring. (what do they have in common)

n² - 2n = 0

• n = 2 and 0

• n = -2 and 0

• n = 2

• n = 0

Tags

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