GKFix MCQ Question

What is the general form of a wave traveling in the negative x-direction?

• A. y(x,t) = a sin(kx - ωt)
• B. y(x,t) = a sin(ωt - kx)
• C. y(x,t) = a sin(kx + ωt + φ)
• D. y(x,t) = a cos(kx)