For the function f(x) = 5x^6 + 6x^5 - 15x^4
a.) find where the function is increasing & decreasing
b.) find where the graph if concave up & concave down
c.) name all inflection points
d.) find all relative extrema
a.) find where the function is increasing & decreasing
b.) find where the graph if concave up & concave down
c.) name all inflection points
d.) find all relative extrema