Euler's [OY-ler's] method uses these figures to approximate solutions to di
Euler's [OY-ler's] method uses these figures to approximate solutions to differential equations, and Newton's method approximates graphs as these figures to find roots. One of these figures is generated by the polar graph of the secant function. For any two points there is exactly one of these that goes through them, and these figures can be generated by extending a segment forever in both directions. Name these figures whose graph equations can be put into slope-intercept form.
Euler's [OY-ler's] method uses these figures to approximate solutions to differential equations, and Newton's method approximates graphs as these figures to find roots.
line (prompt on "segment" or "ray" until the end of the 2nd sentence; segment or ray is incorrect after that)