Quadratic Equations

Standard form of a quadratic equation

• y=x²
• y=ax²+bx+c
• y=mx+b
• y=x

Tags

CCSS.HSA.CED.A.1

3x² - 4 is a quadratic

• true
• false

Tags

CCSS.HSA.REI.B.4

Which of the following is NOT a quadratic function

• f(x) = -3x²
• f(x) = -5x - x²
• y = 3x³ - 4x + 5
• A = pi.r²

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.HSA.REI.B.4

CCSS.HSA.CED.A.1

The formula
b² - 4ac
is called the

• quadratic formula
• factored form
• vertex formula
• the discriminant

Tags

CCSS.HSA-REI.B.4B

If the discriminant is greater than zero, the equation has

• 1 solution
• 2 solutions
• no solutions

Tags

CCSS.HSA-REI.B.4B

If the discriminant is less than zero, the equation has

• 1 solution
• 2 solutions
• no solutions

Tags

CCSS.HSA-REI.B.4B

The equation
y = x² -12x + 36 has

• 1 solution
• 2 solutions
• no solutions

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.APR.B.3

CCSS.HSA.REI.D.11

Find the roots of this equation
x² + x - 6 = 0

• 4, -1
• 3, -2
• -6, 1
• 2, -3

Tags

CCSS.HSA-REI.B.4B

The solutions of the quadratic equation
x²-5x+6=0 are

• x=1 or x=-6
• x=3 or x=2
• x=-3 or x= 2
• x=-1 or x=6

Tags

CCSS.HSA-REI.B.4B