The number of tiles (y) at any x stage is given by the equation y = 2x - 1
What is an equation?
An equation is an expression that shows the relationship between two or more variables and numbers.
From the table, the number of tiles increases by 2 for every additional stage. Let y represent the number of tiles and x represent the stage, hence:
y = 1 + (x - 1)2
y = 2x - 1
The number of tiles (y) at any x stage is given by the equation y = 2x - 1
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