A slope field for is to be drawn at every lattice point with integer coordinates…

MATHEMATICS · Single correct · AP · Calculus AB · Differential Equations · Differential Equations

Problem

A slope field for dydx=x2−y2\dfrac{dy}{dx}=x^{2}-y^{2} is to be drawn at every lattice point (x,y)(x,y) with integer coordinates satisfying −2≤x≤2-2\le x\le 2 and −2≤y≤2-2\le y\le 2. How many of these points will produce horizontal line segments (segments with slope zero)? (a) 55 (b) 99 (c) 88 (d) 1010

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