Interpreting Key Features Algebra

Identify the vertex

• (-1,-9)

• (0,-8)

• (-4,0)

• (0,0)

Define Minimum

• The highest y-value on the graph

• Where the parabola touches or intersects the y-axis

• Where the parabola touches or intersects the x-axis, also called the x-intercept

• The lowest y-value on the graph

Define X-intercept

• The highest or lowest point on the graph

• Where the parabola touches or intersects the x-axis

• Where the parabola touches or intersects the y-axis

• A line that divides the graph into two equal parts. i.e. cuts the graph in half

What is the equation for axis of symmetry?

• y=3

• x=3

• x=5

• x=1

What is the equation of the axis of symmetry?

• y = 0

• x = 0

• x = 3

• x = -3

Define Maximum

• The highest or lowest point on the graph

• The highest y-value on the graph

• The lowest y-value on the graph

• A line that divides the graph into two equal parts. i.e. cuts the graph in half

Determine the domain and range of the function

• Domain: All real numbers

  Range: All real numbers

• Domain: x ≥ -4

  Range: All real numbers

• Domain: All real numbers

  Range: y ≥ -4

• Domain: -1 ≤ x ≤ 5

  Range: y ≥ -4

What are the x- and y -intercepts on this graph?

• (0,5), (0,5)

• (5,0), (5,0)

• (5,0), (0,5)

• (0,0), (5,0)

Which ordered pair could represent the x-intercept of a function.

• (0, 4)

• (4, 4)

• (4, 0)

• None of these.

What is the x-intercept for the given graph?

• 1

• -2

• 2

• 1/2