Real-life graphs (Edexcel GCSE Maths): Flashcards
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15 cards from this deck
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Practise the cards
15 cards from this deck
Real-life graphs
Real-life graphs
Visual representations of everyday situations with measurable data
Most common scale reading mistake
Most common scale reading mistake
Assuming each square equals one unit
Value per square if 10 squares = £50
Value per square if 10 squares = £50
per square
Fixed cost definition
Fixed cost definition
One-off charge that doesn't change regardless of usage
Fixed cost location on graph
Fixed cost location on graph
Y-intercept (where line crosses y-axis)
Variable cost definition
Variable cost definition
Cost that changes depending on usage
Variable cost shown by
Variable cost shown by
Gradient (steepness) of the line
Gradient of a line represents
Gradient of a line represents
Rate of change between two variables
Steeper gradient means
Steeper gradient means
Higher rate of change (more expensive per unit)
Gentler gradient means
Gentler gradient means
Lower rate of change (cheaper per unit)
Gradient in distance-time graph shows
Gradient in distance-time graph shows
Speed
Break-even point definition
Break-even point definition
Where lines cross; both options cost exactly the same
Best option at low usage levels
Best option at low usage levels
Option with lowest starting point
Best option at high usage levels
Best option at high usage levels
Option with gentlest gradient
How to calculate gradient
How to calculate gradient
Vertical change divided by horizontal change
