For the function f(x)=ax^4-5x^b+12, what are the possible values of a and b, where a∈R, b∈Z, such that f(x) has the following end behaviours: as x-> ∞, y-> ∞ and x-> ∞, y-> ∞.

a mantle plume is an upwelling of abnormally hot rock within the earth's mantle. as the heads of mantle plumes can partly melt when they reach shallow depths, they are thought to be the cause of volcanic centers known as hotspots and probably also to have caused flood basalts.

step-by-step explanation:

sweetheart, there isn't a cube below.

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