Solve Quadratic Equations Using the Quadratic Equation

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

• 0

• 1

• 2

• 3

Tags

CCSS.HSA-REI.B.4B

If the discriminant is zero you will have

• no real solutions

• two real solutions

• 1 real solution

• 1 imaginary solution

Tags

CCSS.HSA-REI.B.4B

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

• True

• False

The quadratic equation can be used to solve quadratic equations that cannot be factored.

• True

• False

Tags

CCSS.HSA-REI.B.4B

Solve using the Quadratic Formula:

4x² + x - 95 = 0

• x = 7 or x = -6

• x = 5 or x = -6

• x = 4.75 or x = -5

• x = -4.75 or x = 5

Tags

CCSS.HSA-REI.B.4B

Solve the following quadratic equation...

x² + 7x + 12 = 0

• x = -2

  x = -6

• x = -3

  x = -4

• x = -1

  x = -12

• x = 2

  x = 6

Tags

CCSS.HSA-REI.B.4B

Solve the following quadratic equation...

x² + 3x + 2 = 0

• x = -1

  x = -2

• x = 1

  x = 2

• x = -1

  x = 2

• x = 1

  x = -2

Tags

CCSS.HSA-REI.B.4B

Solve the equation using the quadratic formula.

4x² +9x = 12x

• x = {0, 3/4}

• x = {0, -3/4}

• x = {0, 4/3}

• no solution

Tags

CCSS.HSA-REI.B.4B

What can the roots to a quadratic equation be called?

• zeros

• solutions

• x-intercepts

• none of the choices

Tags

CCSS.HSA-REI.B.4B

What is the quadratic formula?

• 
• 
• 
• 

Tags

CCSS.HSA-REI.B.4B