Let f(x)={2x+1if x≤3,8−4xif x>3. Find the sum of all values of x such that f(x) = 0
2x + 1 = 0 8 - 4x = 0
2x = -1 8 = 4x
x = -1/2 OK because x ≤ 3 x = 8/4 = 2 not OK because x must be > 3
Sum = -1/2
+17 
