Line of best fit is a straight line that best fit on a scatter plot that represents the relationship between the two sets of data. The line of best fit calculator plot the graphs by marking the two sets of points and draw a straight line that best fits in.

**Step 1 :**Note the two sets of points from the question.

**Step 2 :**Mark all the points correctly in the xy graph and draw a straight line with the ruler to get the line of best fit. Below are some of the solved problems based on line of best fit.

### Solved Examples

**Question 1:**

x |
1 |
2 |
3 |
4 |
5 |
6 |

y |
7 | 10 | 12 | 15 | 19 | 21 |

Using the above data shown, draw the line of best fit for the given data.

**Solution:**

Given data :

x = 1, 2, 3, 4, 5, 6

y = 7, 10, 12, 15, 19, 21

Let's plot the points and draw the line of best fit.

**Question 2:**

Students |
A |
B |
C |
D |
E |
F |

Chemistry scores |
1 |
2 |
3 |
4 |
5 |
6 |

Physics scores |
7 | 10 | 12 | 15 | 19 | 21 |

Using the above data shown, draw the line of best fit for the given data.

**Solution:**

Given data :

x = 62, 71, 69, 72, 45, 83

y = 60, 65, 65, 67, 39, 80

Let's plot the points and draw the line of best fit.