Mathematics

Problem

When approximating the value of a solution curve by taking a single tangent-line step from an initial point

(x_0,y_0)

, which quantity must be chosen IN ADVANCE before any calculation can begin? a) the next

x

–value

x_1

b) the step size

h

c) the number of steps

n

to be used d) the initial slope

\bigl(\tfrac{dy}{dx}\bigr)_{(x_0,y_0)}