iRubric: Quadratic Function Investigation rubric

My answer justifies that I know how to use the X factor and Zero Method to locate all roots, accurate to two decimal places. My answer shows I successfully know how to determine consecutive values of x between which each real zero is located and it correlates to the roots stated previously.

My answer justifies that I know how to use the X factor and Zero Method to locate some roots, accurate to two decimal places. My answer shows I successfully know how to determine consecutive values of x between which the stated real zero is located and it correlates to the roots stated previously.

My answer justifies that I know how to use the X factor and Zero Method to locate some roots, accurate to two decimal places. My answer shows I did not know how to determine consecutive values of x between which each real zero is located.

My answer shows I do not know how to find the roots and could not interpret the Location Principle.

My answer shows I can use the axis to symmetry and substitute properly to find the vertex and accurately place them in an ordered pair (x,y).

My answer shows I can use the axis to symmetry and substitute properly to find the vertex but could not accurately place them in an ordered pair (x,y).

My answer shows I can not use the axis to symmetry and substitute properly to find the vertex however I can accurately find the vertex and place them in an ordered pair (x,y).

My answer shows I can not use the axis to symmetry and substitute properly to find the vertex nor accurately place them in an ordered pair (x,y).