Intro to Quadratics

Which equation do you use to find the axis of symmetry? 

• y = mx + b
• x = -b / 2a
• x = a(b)^x
• y = -b / 2a

What is the axis of symmetry for this graph? 

• x = 2
• x = -4
• y = -4
• there is not one

Tags

CCSS.HSA.REI.B.4

CCSS.HSG.GPE.A.2

What is the "b" in this equation? 

• 1
• 4
• 0
• x

What is the "a" in this equation? 

• 1
• -8
• 15
• x²

If y=0, what are the values of x?

• -1 and 3
• 1
• 0 and 2
• -3

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

What direction is the following equation opening?
y=-3x²-7x+8

• Up
• Down
• Left
• Right

A parabola has a vertex at (-3,2). Where is the axis of symmetry?

• y = -2
• x = 3
• x = -3
• y = 2

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum
• opens up with a minimum
• opens down with a maximum
• opens down with a minimum 

Is this a max or min?

• max
• min
• cannot be determined

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.D.10

What is another name for the x-intercepts of a quadratic?

• y-intercept
• Zeros
• x-axis
• They don't have another name

Tags

CCSS.HSA.APR.B.2

CCSS.HSA.APR.B.3