2.6.3 Practice: Quadratic Functions
Answer the following questions using what you've learned from this unit. Write your responses in
the space provided.
1. A function that can be written in the form , where is called a
standard function. Its graph is a shape called a parabola. (1 point)
2. List the important features for the graph of a quadratic function. (1 point)
1.Whether it’s up or down
2. Vertex
3. Point of intercept
4. Intercepts of the graph
3. Write each form of the quadratic function. (3 points)
Standard form: y=ax^2+bx+c
Vertex form: y=a(x-h)^2+k
Intercept form: y=a(x-p)(x-q)
4. List the intercepts, vertex, and axis of symmetry for each quadratic function whose graph is shown.
(2 points)
a.
, Intercepts: (-3,0)(1,0)
Vertex: (-1,-3.5)
Axis of symmetry: x=-1
b.
Intercepts: (0,0)(5,0)
Vertex: (2.5,4.5)
Answer the following questions using what you've learned from this unit. Write your responses in
the space provided.
1. A function that can be written in the form , where is called a
standard function. Its graph is a shape called a parabola. (1 point)
2. List the important features for the graph of a quadratic function. (1 point)
1.Whether it’s up or down
2. Vertex
3. Point of intercept
4. Intercepts of the graph
3. Write each form of the quadratic function. (3 points)
Standard form: y=ax^2+bx+c
Vertex form: y=a(x-h)^2+k
Intercept form: y=a(x-p)(x-q)
4. List the intercepts, vertex, and axis of symmetry for each quadratic function whose graph is shown.
(2 points)
a.
, Intercepts: (-3,0)(1,0)
Vertex: (-1,-3.5)
Axis of symmetry: x=-1
b.
Intercepts: (0,0)(5,0)
Vertex: (2.5,4.5)
