1. The problem statement, all variables and given/known data Attached Image 2. Relevant equations this is not a simple plane curve or a close plane curve so I use the formula: ∫ F ⋅ dr/dt dt 3. The attempt at a solution From the point (0,0) to (2,4) Direction Vector v(t) = <2-0, 4-0> Parametric Equation: r(t) = (2t + 0) i + (4t + 0) j r'(t) = 2i + 4j ∴ F(x(t),y(t)) = (4t)2i + 2(2t)(4t)j = (16t2)i + (16t2)j F(x(t),y(t)) ⋅ r'(t) =( (16t2)i + (16t2)j ) ⋅ (2i + 4j) = 32t2 + 64t2 I feel my math is correct which leads me to believe my approach is incorrect. The final answer is supposed to be 32 evaluated from 0 to 2. But if I finished my integral : ∫ 96t2dt = 32t3 Can someone please help me.