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10 cards from this deck
y = mx + c, where m is gradient and c is y-intercept.
Choose x-values, find y, plot points, draw line through.
Where line crosses y-axis; shows predicted y at x=0.
May not be realistic if outside data range.
Y increases by 1.05 for each 1 unit increase in X.
Rate at which y changes for a unit increase in x.
Understand relationship and make predictions.
(30,28.5) and (80,81)
y increases by 1.05×5 = 5.25
(20,18) and (90,91.5)
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