# Solving linear equations by graphing

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##### Intros

##### Examples

###### Lessons

- A train travels at a speed of 120km/h. The equation that represents the relationship of distance (d) and time (t) is d=120t.
- The graph shows the relationship of the temperature of water, c, and time, t, as the water boils.

- Plot the graph for each set of values. Then, find the equation that represents each relationship.
- Mark ran a marathon. Below is the record of how he did.

Time,

*t*(h)Distance,

*d*(km)0.5

4.2

0.8

6.7

1.3

10.9

2.9

24.4

3.5

29.4

4.2

35.3