Limits from Tables and Graphs
1. Find lim
𝑥→4
𝑥+2
x 2 2.5 3 3.1 3.3 3.5 3.7 3.9 3.99 3.999
f(x)
x 6 5.5 5 4.9 4.7 4.5 4.3 4.1 4.01 4.001
f(x)
Table 1
Table 2
(4,6)
(2,4)
(3,5)
lim
𝑥 → 4
𝑥 +2
6
4 4.5 5 5.1 5.9
5.3 5.5 5.7 5.99
8
5.999
7
7.5 6.7
6.9 6.5 6.3 6.1 6.01 6.001
As the value of x gets closer to 4 from
the left or as x approaches 4 from the
left, the value of f(x) approaches 6. As
the value of x gets closer to 4 from
right or as x approaches 4 from the
right, f(x) approaches 6. In other
words, the value of f(x) gets closer and
closer to 6 as the value of x gets closer
and closer to 4 from the either side.
This can be written as follows:
= 6
2. Find lim
𝑥→1
𝑥−3
a. table
b. graph
c. answer
x -2 0 0.1 0.3 0.5 0.7 0.9 0.99 0.999 0.9999
f(x)
x 3 2 1.9 1.7 1.5 1.3 1.1 1.01 1.001 1.0001
f(x)
2. Findlim
𝑥→1
𝑥−3
x -2 0 0.1 0.3 0.5 0.7 0.9 0.99 0.999 0.9999
f(x) -5 -3 -2.9 -2.7 -2.5 -2.3 -2.1 -2.01 -2.001 -2.0001
x 3 2 1.9 1.7 1.5 1.3 1.1 1.01 1.001 1.0001
f(x) 0 -1 -1.1 -1.3 -1.5 -1.7 -1.9 -1.99 -1.999 -1.9999
a. table
b. graph
c. answer
(1,-2)
= -2

-from-table-and-graphs you wanna learn this

  • 1.
  • 2.
  • 3.
    x 2 2.53 3.1 3.3 3.5 3.7 3.9 3.99 3.999 f(x) x 6 5.5 5 4.9 4.7 4.5 4.3 4.1 4.01 4.001 f(x) Table 1 Table 2 (4,6) (2,4) (3,5) lim 𝑥 → 4 𝑥 +2 6 4 4.5 5 5.1 5.9 5.3 5.5 5.7 5.99 8 5.999 7 7.5 6.7 6.9 6.5 6.3 6.1 6.01 6.001
  • 4.
    As the valueof x gets closer to 4 from the left or as x approaches 4 from the left, the value of f(x) approaches 6. As the value of x gets closer to 4 from right or as x approaches 4 from the right, f(x) approaches 6. In other words, the value of f(x) gets closer and closer to 6 as the value of x gets closer and closer to 4 from the either side. This can be written as follows: = 6
  • 5.
    2. Find lim 𝑥→1 𝑥−3 a.table b. graph c. answer x -2 0 0.1 0.3 0.5 0.7 0.9 0.99 0.999 0.9999 f(x) x 3 2 1.9 1.7 1.5 1.3 1.1 1.01 1.001 1.0001 f(x)
  • 6.
    2. Findlim 𝑥→1 𝑥−3 x -20 0.1 0.3 0.5 0.7 0.9 0.99 0.999 0.9999 f(x) -5 -3 -2.9 -2.7 -2.5 -2.3 -2.1 -2.01 -2.001 -2.0001 x 3 2 1.9 1.7 1.5 1.3 1.1 1.01 1.001 1.0001 f(x) 0 -1 -1.1 -1.3 -1.5 -1.7 -1.9 -1.99 -1.999 -1.9999 a. table b. graph c. answer (1,-2) = -2