Graphing Quadratic Equations

What is the vertex?
y = -2x² + 4x + 3

• (0, 3)
• (-1, 5)
• (1, 5)
• (1, -5)

What is the axis of symmetry?
f(x) = x² - 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4

What is the axis of symmetry?
y = 3x² - 6x + 4

• x=1
• x=-6
• x=2
• x=-1

What is the vertex?
f(x) = -x² - 4x + 12.

• (-2, 16)
• (2, 0)
• (2, 4)
• (-2, 4)

What is the vertex?

• (2, 4)
• (3, -1)
• (0, 8)
• (4, 2)

What do we call the highest or lowest point of a quadratic?

• parabola
• vertex
• graph
• point

Is the graph shown above a max or min?

• Maximum

• Minimum

What is a axis of symmetry?

• all real numbers

• y=5

• the line that divides the graph in equal halves

• y=mx+b

Does this parabola open up or down?

y = 4x² - 3x - 9

• up

• down

Determine the values of a, b and c for the quadratic equation 9x² - 14x + 5.

• a = -14, b = 9, c = 5

• a = 5, b = 9, c = - 14

• a = 9, b = - 14, c = 5

• a = x², b = x , c = 5