human
Read values off a speed-time graph This velocity-time graph shows the first \( 5 \) seconds of Mo's journey which starts at home.

At what time did he first start travelling at \( 4 \mathrm{~m} / \mathrm{s} \) ? ![The image is of a graph. Its vertical axis labelled Velocity (m/s) and has the scale 0, 2, 4, 6 marked in even steps. Its horizontal axis is labelled Time (secs) and has the scale 0, 1, 2, 3, 4, 5 marked in even steps. 
The graph is in three sections. The first section is a straight slanted line from (0,0) to (1, 4). The second section is a horizontal line from (1, 4) to (3, 4). The third section is a slanted line from (3, 4) to (5, 0).]() \( 4 \) secs
gpt
When reading value from graph, reads from the wrong axes.