For what values of does the graph of lie:

MATHEMATICS · Multi-part · AP · AP Precalculus · Trigonometric and Polar Functions · Trigonometric and Polar Functions

Problem

For what values of

d

does the graph of

y=3\cos x+d

lie: (1) entirely above the

x

-axis (2) entirely below the

x

-axis (3) partially above and partially below the

x

-axis?