Graphing Trinomials

Using your calculator, graph y = -3x² + 6x - 5 and identify the max or min.

• Max: (1, -2)

• Min: (1, -2)

• Max: (-2, 1)

• Min: (-2, 1)

What is the orange line called?

• Line of Solutions

• Roots

• Vertex

• Axis of Symmetry

What is the vertex of y=x²+4x+3?

• (2,1)

• (-2,1)

• (0,0)

• (-2,-1)

Does this graph have a maximum or a minimum?

• Maximum

• Minimum

Using your calculator, graph y = 2x² + 4x - 3 and identify the max or min.

• Max: (-1, -5)

• Min: (-1, -5)

• Max: (-5, -1)

• Min: (-5, -1)

Determine the vertex of the parabola:
y = 5x² - 20x + 13

• (5, -7)

• (-2, -7)

• (2, -7)

• (-7, -2)

The axis of symmetry line passes through which point?

• y-intercept

• any random point

• vertex

• none of these

Does this graph in the back have maximum or minimum value?

• maximum

• minimum

• neither

• both

The graph of a quadratic function is called a

• line

• parabola

• half oval

• vertex form

The axis of symmetry is _____________________ .