A slope field displays vertical bands: at a fixed –value
MATHEMATICS · Single correct · AP · Calculus AB · Differential Equations · Differential Equations
Problem
A slope field displays vertical bands: at a fixed x–value, every segment on that vertical line has the same slope, and the slopes increase steadily from negative on the far left to positive on the far right. Along any horizontal line the slope is constant only when the x–coordinate is the same. Which differential equation best matches this description?
(a) dxdy=y
(b) dxdy=−x
(c) dxdy=x
(d) dxdy=x+y