quadratic equations

What are the green dots called?

• axis of symmetry
• vertex
• parabola
• roots or x-intercepts

Tags

CCSS.HSF-IF.C.7A

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

In the expression 4x²-5x+9 the leading coefficient is

• 9
• -5
• -4
• 4

The solution of the quadratic equation
4x²-5x-9=0 are

• x=-1 or x=9/4
• x=1 or x=9/4
• x=2 or x=3
• x=-2 or x=-3

Tags

CCSS.HSA-REI.B.4B

One solution of the quadratic equation
x²-7x+12=0 is

• x=3
• x=2
• x=-3
• x=-2

Tags

CCSS.HSA-REI.B.4B

Which of the followig trinomial is perfect square trinomial?

• x²+4x+9
• x²-22x-121
• x²+4x-9
• x²-22x+121

Tags

CCSS.HSA.APR.C.4

Factor x²-6x-40

• (x-10)(x+4)
• (x+10)(x-4)
• (x-8)(x+5)
• (x+8)(x-5)

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Solve
x² + 13x + 12 = 0

• x = -12, -1
• x = 12, 1
• x = 13, 1
• x = -13, -1

Tags

CCSS.HSA-REI.B.4B

What are the solutions to 5( x - 3 )² = 45?

• x = 6 and x = 0

• x = -3 and x = 45

• x = -6.71 and x = 6.71

• x = -3 and x = 3

Tags

CCSS.HSA-REI.B.4B

What are the solutions for the equation 2x² + 16x = 18

• x = -1 and x = 9

• x = -9 and x = 1

• x = 2 and x= 18

• x = 2 and x = 16

Tags

CCSS.HSA-REI.B.4B