The opening of a parabola is upwards if its two "legs" are pointing up \/ and downwards if the legs are pointing down /\ >> ( a ) upwards
The y-int is where the graph intersects with the y axis The x-int is where the graph intersects with the x axis >> ( b ) there is no x-int in this case y-int = 6
The vertex is where the two "legs" meet; it's either the maximum or the minimum of the graph. >> ( c ) v = (2 , 2)
The axis of symmetry is the line which you would consider as a "mirror" it can be either the horizontal or in this case vertical line where it is the axis of reflection. >> ( d ) x = 2