Turning numbers into pictures: plotting straight-line graphs, reading travel graphs (distance-time and speed-time), and finding gradients - a skill used everywhere from kombi timetables to phone data usage charts.
The equation y = mx + cm is the gradient (steepness - like how steep a hill is on your …
View LessonReading the story of a journeyA distance-time graph is like a diary of a kombi's trip: the steeper the line, …
View LessonA different storyHere the line's steepness shows acceleration (speeding up or slowing down), not speed itself. Think of it like …
View LessonFind the gradient of the line through (2,5) and (6,13).A line has gradient 3 and y-intercept -2. Write its equation.Find …
View Exercise Submit ExerciseA car travels 90 km in 1.5 hours at constant speed. Find its speed.A cyclist's graph shows 20 km covered …
View Exercise Submit ExerciseA car accelerates from 0 to 15 m/s in 5 seconds. Find its acceleration.Using the area-under-graph rule, find the distance …
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