Unit 6 IM Test Review

• The graph has a y-intercept at (2, 0).

• The coordinates of the vertex are (1, 1).

• The graph of the function opens downward.

• The x-intercepts are at (0, 0) and (2, 0).

Here is the graph of a quadratic function f.

Select all equations that could define the function f. (hint, there are 3)

• f(x) =

  (x + 2)(x + 6)

• f(x) =

  (x − 2)(x − 6)

• The y-intercept of the graph is at (0, c).

• The graph has an x-intercept at (c, 0).

• When a < 0 the graph opens downward.

• The graph has two

  x-intercepts.

• If b = 0, then the vertex is on the y-axis.

A quadratic function is defined by p(x) = (x − 1)(x + 3).

The x-intercepts are:

• (3,0) and (-1,0)

• (-3,0) and (1,0)

A quadratic function is defined by p(x) = (x − 1)(x + 3).

The y-intercept is:

• -3

• 3

A quadratic function is defined by p(x) = (x − 1)(x + 3).

The vertex is:

• (-1,-4)

• (1,4)

• 
  Lin’s. It happened 1.25 seconds after the stone was tossed.

• Clare’s. It happened 1 second after the stone was tossed.

• 
  Yes, Clare’s stone reaches a higher maximum than Lin’s stone.

• No, Lin’s stone reaches a higher maximum than Clare’s stone.

• No. Both functions have the same maximum value.

• 8 feet

• 9 feet

• 10 feet

• (4,-7)

• (-4,-7)

• (-4,7)