Plot graphs of bond dissociation energy for halogens (F2, Cl2, Br2, I2) and boiling points for hydrogen halides (HF, HCl, HBr, HI).

Step 1: Bond dissociation energies of halogens ($\ce{F2}$, $\ce{Cl2}$, $\ce{Br2}$, $\ce{I2}$)

Values (in $\si{kJ.mol^{-1}}$):

Trend: Plot points at these values. Connect with a line: starts low at $\ce{F2}$ (weak bond due to lone pair repulsion), peaks high at $\ce{Cl2}$, then decreases steadily to $\ce{I2}$ (weaker overlap of large orbitals).

Step 2: Boiling points of hydrogen halides ($\ce{HF}$, $\ce{HCl}$, $\ce{HBr}$, $\ce{HI}$)

Values (in $^\circ\si{C}$):

Trend: Plot points at these values. Connect with a line: sharp drop from $\ce{HF}$ (high due to hydrogen bonding) to $\ce{HCl}$, then gradual increase to $\ce{HI}$ (increasing London dispersion forces with molecular size).

Sketched trends match data points and lines described above.
BDE: low F₂ → peak Cl₂ → ↓ to I₂

BP: high HF → sharp ↓ HCl → gradual ↑ HI