Given the table, determine if the data represents a linear or an exponential function and find a possible formula for the function. x 0 1 2 3 4 f of x 0 2 4 6 8

The output increases by 2 each time x increases by 1, so the data is linear. Since f(0) = 0 and each output is twice x, a possible formula is y = 2x. This matches choice B, “Linear; y is equal to 2x.”

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