The salsa dance style that emphasizes linear movement and is associated with Los Angeles is LA style.
Los Angeles style salsa, often shortened to LA style, is danced “on 1,” meaning the leader typically breaks forward on the first beat of the musical phrase. Partners dance along a straight line or slot, exchanging positions through patterns such as the cross-body lead.
The style developed in the Los Angeles salsa scene and became known for energetic presentation, flashy footwork, spins, and acrobatic elements. The Vazquez Brothers—Luis, Francisco, Johnny, and Rogelio—are widely credited with helping develop and popularize its early form.
The main comparison is with Cuban-style salsa, or casino, whose movement is generally more circular. New York style is also linear, so “linear” alone does not identify LA style; the Los Angeles association and the characteristic “on 1” timing make the intended answer clear.