Hi, another math problem : a cubic function is definined for x∈r as : f(x)= x³ +x(1-k²) + k , where k is constant. a) show that -k is root of f. b) find, in term of k, the other two roots of f. c) find the set of values of k for which f has exactly one real root. a lot

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute: