if f(x) = 3x + 2 and you're looking for f(2), just plug in 2 for x: f(2) = 3(2) + 2 = 6 + 2 = 8.
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Given a value of x, find the value for -3x + 2
3x + 2 = 3x + 6 This is not possible.
(2, -1)
Their graphs are.
3x + 2 = 0 3x = -2 x = -2/3