Question

If f(x) = – 3 + 5, solve the following: Give your answer as a reduced fraction.f(x) = 3X =f(x) < 3?

Answer 1

We have the following:

`f(x)=-x+5`

therefore, f (x) = 3

`\begin{gathered} 3=-x+5 \\ x=5-3 \\ x=2 \end{gathered}`

the answer is x = 2

f (x) <= 3

`\begin{gathered} -x+5\leq3 \\ -x\leq3-5 \\ -x\leq-2 \\ x\ge2 \end{gathered}`

The answer is x => 2