Quadratics Review

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 

Tags

CCSS.HSF-IF.C.7A

Does the following quadratic equation have a maximum or minimum value? How can you tell?
y=x²+2x-3

• Minimum value, because the a value is positive
• Maximum value, because the b value is positive
• Maximum value, because the a value is positive
• Minimum value, because the c value is negative

Identify the 'a' value: y = 16x² -8x -24

• 16
• 8
• -8
• -24

Solve  by factoring
x² + 13x + 12 = 0

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

Tags

CCSS.HSA-REI.B.4B

Factor: x² + 2x – 3

• (x - 2)(x + 1)
• (x + 1)(x - 3)
• (x + 2)(x - 1)
• (x - 1)(x + 3)

Is this a max or min?

• max
• min
• cannot be determined

What is the vertex?

• (0, - 1)
• (0, 0.5)
• (-1, 0)
• (0.5, 0)

What is the vertex of the following equation:
y=-3(x-2)² - 4?

• (-2,-4)
• (2,-4)
• (3,-4)
• (2,4)

What is the range of this function?

• -4 ≤ y ≤ 5
• -1 ≤ x ≤ 3
• All Real Numbers
• y ≥ -4

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the green dashed line called?

• roots or x-intercepts

• parabola

• axis of symmetry

• vertex

Tags

CCSS.HSF-IF.C.7A