Writing & Graphing Quadratic Functions (1st)

Identify the y-intercept

• (0, -3)

• (0, 1)

• (0, 3)

• (2, 1)

If given the equation y = 3(x + 5)² - 4, what is the vertex of the parabola?

• (5, -4)
• (-5, -4)
• (-15, -4)
• (15, -4)

What is the axis of symmetry for the equation: y = ½(x - 4)² - 4?

• y = 4

• y = - 4

• x = 4

• x = - 4

Does f(x) = - 4x² have a maximum or minimum value?

• maximum
• minimum

Which statement is true for the following function:
$f\left(x\right)=-5\left(x+6\right)^2+1$

• The vertex is a minimum at (6, 1)

• The vertex is a maximum at (6, 1)

• The vertex is a minimum at (-6, 1)

• The vertex is a maximum at (-6, 1)

Which quadratic function in vertex form can be represented by the graph that has a vertex at (3, -7) and passes through the point (1, -10)?

The graph of a quadratic function is shown on the grid.

Which function is best represented by this graph.

Which quadratic function in vertex form can be represented by the graph that has a vertex at (-3, 0) and passes through the point (-5, -4).

Which quadratic function represents a graph that has a vertex at (4, -1) and passes through the point (0, 15)?

How do you know if a parabola has a minimum?

• When ‘a’ is positive there is a minimum

• When ‘a’ is negative there is a minimum

• When all the numbers in the equation are negative there is a minimum

• When all the numbers in the equation are positive there is a minimum