Use the graph of the quadratic function to answer the question

which statement describes the domain of the function?
y can be any real number.
−3≤x≤3
x can be any real number.
−9≤y< ∞

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

Just tell me how to set up the equation.

Find the average rate of change for the given function drom x=1 to x=2