Consider the function f(x) = -3x+2. Notice the limit of f(x) as x approaches 1 is -1. Find a value for delta such that is the distance x is from 1 is less than delta, then the distance from f(x) to -1 is less than 0.05

df/dx = -3

df = -3 dx

|.05| = -3 |dx|
|dx| = .01667

check
if x = 1.01667
f(x) = -3(1.01667) + 2
= -3.05+ 2
= -1.05
distance from -1 is .05 sure enough