# How do you graph f(x)=(1/2)x by plotting points?

Jul 30, 2016

See the explanation

#### Explanation:

Decide on a range of values for $x$

For each $x$ value calculate $\frac{1}{2} \times x$ and this is the value for $y$

Some people say that for a straight line you only need 2 points as you draw a line through them with a rule.

I would suggest that a minimum of 3 points is better. If all the points do not line up then at least one of your calculations is wrong.

Show your values in a table. This gives you extra communication marks.

You do not need to colour the table! I have only done so to make things clearer

Draw your axis for $x$ and $y$. Label these as it again gives you extra points for good communication.

Mark and label your points. Again you get extra marks