Question

which of the following is not an ordered pair form the function f(x) = 5x - 6?

Answer 1

the function is.

$f(x)=5x-6$

So to solve it we need to replace the order pair and see if the equation have sence so:

For (3,9)

$\begin{gathered} 9=5\cdot3-6 \\ 9=15-6 \\ 9=9 \end{gathered}$

So A is correct

For (1,-1)

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