Question

draw the following graph and find the domain and range f(x)=3x​

Answer 1

Answer:

Let f(x) = y = 3x.

$</p><p>\begin{gathered}\boxed{\begin{array}{c|c|c|c|c|c}\bf x&\sf 0&\sf 1&\sf 2 &\sf 3&\sf 4\\\frac{\qquad \quad \qquad}{}&\frac{\quad \qquad \qquad}{}&\frac{\qquad \quad\qquad}{}&\frac{\qquad \quad \qquad}{}&\frac{\quad \qquad \qquad}{}&\frac{\qquad \quad\qquad}{}\\\bf y&\sf 0&\sf 3&\sf 6&\sf 9&\sf 12\end{array}}\end{gathered}$

Now, plot these points on graph paper, we get

Domain = All real numbers

Range = All real numbers