Quadratics Revision

What is the correct equation for this parabola?

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

• 16

• -8

• 8

• -24

Does this graph have a maximum or minimum?

• Minimum
• Maximum

What is the green dot on the parabola called? (2 answers)

• maximum
• vertex

• roots
• zeros

What are the green dots called?

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

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

What is the axis of symmetry of:y=2x²-4x+9

• x = 1
• x = -1
• x = -2
• x = 4

What is the y-intercept of: y=7x²+2x -1

• (0, 1)
• (0, -1)
• (1, 0)
• (-1, 0)

Find the y-intercept of f(x) = 2x² - 2x + 1

• 2
• -2
• 1
• -1

Does y = -4x² have a maximum or minimum value?

• maximum
• minimum