2023 - QUESTÃO 68 - Considere o gráfico da função real de variável real f(x) = k – |x – 6|, onde k é

Consider the graph of the real function of a real variable f(x) = k – |x – 6|, where k is a fixed positive real number and |a| denotes the absolute value of a. The representation of this graph in the Cartesian coordinate system xOy forms, with the abscissa axis Ox, a triangle with an area of ​​20 u.a. According to this information, the value of k is equal to A) 2/3 B) 2√10 C) 10/3 D) 2√5