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Evaluate f(x) = 5x - 1 given the inputs (-1, 0,1,2)

User Pflevy
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1 Answer

5 votes

Answer:

-6, -1, 4, 9

Explanation:

You can substitute the values and do the arithmetic:

f(-1) = 5(-1) -1 = -5 -1 = -6

Or, you can recognize that the output values will increase by 5 for each increase of 1 in the input value.

f(0) = -6 +5 = -1

f(1) = -1 +5 = 4

f(2) = 4 +5 = 9

The (input, output) pairs are ...

(-1, -6), (0, -1), (1, 4), (2, 9)

User DroidHeaven
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