Please help.
Is algebra.
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Identify the function that contains the data in the following table: x     -2         0         2         3         5     f(x)     5         3         1         2         4     possible answers: f(x) = |x| + 1 f(x) = |x - 2| f(x) = |x - 2| - 1 f(x) = |x - 2| + 1

Six random samples were taken each year for three years. the table shows the inferred population for each type of fish for each year.

Convert the density of surface sea water to metric tons/cubic meter