limit as x approaches 2 of (2x-8)/(x-1)
1) Compute the limit of 2x -8x -1 as x → 2
ⓘ The limit of a product of finite limits is the product of the limits
The limit of 2x is 2·2 when x → 2
⇥1.1) Let's evaluate: 2·2
⇥ⅰ 2·2 = 4
⇥ 4
ⓘ The limit of a sum of finite limits is the sum of the limits
The limit of 2x -8 is 4 -8 when x → 2
⇥1.2) Let's calculate: 4 -8
⇥ⓘ Start from 4 and move back 8 on the number line, going below zero: 4 -8 = -4
⇥ -4
ⓘ The limit of a sum of finite limits is the sum of the limits
The limit of x -1 is 2 -1 when x → 2
⇥1.3) Let's evaluate: 2 -1
⇥ⓘ Start from 2 and move back 1 on the number line: 2 -1 = 1
⇥ 1
So the limit of 2x -8x -1 is -4 when x → 2
▶Limit:   -4