7. [2/8 Points] DETAILS PREVIOUS ANSWERS LARCALC11 1.2.030. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Use the graph of the function f to decide whether the value of the given quantity exists. (If an answer does not exist, enter DNE.) 5 3 2 -4 2 4 6 -1 -- -2 (a) f(-2 ) DNE (b) lim f(x) X- -2 DNE (c) f(0 ) E X