Parabolas
Parabola vertex at (0,0)
Opens UP or DOWN Axis of Symmetry x = 0 Y Intercept (0,0) X Intercept (0,0) Directrix Line y = -p Focus (0,p) Domain: All real x Range: all non-negative y |
Parabola vertex at (0,0)
Opens LEFT or RIGHT Axis of Symmetry y = 0 Y Intercept (0,0) X Intercept (0,0) Directrix Line x = -p Focus (p,0) Domain: All non-negative x Range: all real y |
Parabola vertex at (h,k)
Opens UP Axis of Symmetry x = h Directrix Line y = k-p Focus (h,k+p) Domain: All real x Range: all y > k |
Parabola vertex at (h,k)
Opens RIGHT Axis of Symmetry y = k Directrix Line x = h-p Focus (h+p,k) Domain: All real x > h Range: All real y |