Graph each function. identify the domain and range.
24. f(x) = ix - 5|
26. h(x) = |2x| - 8
28. f(x) = 2|x - 4| +6
only need with #24,25,26

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x, y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis