Question

I need to find the equation for y=
For the format f(x)=|x|.

Answer 1

`f(x)=-|2x|`

Explanation:

First, find the slope of the right side of the graph. It is -2. But because an absolute value always makes the value inside positive, we put the negative sign outside the absolute value.

The rule of thumb for absolute value graphs is: if it opens upwards, the absolute value is positive; if it opens downwards, the absolute value is negative.

So, the equation we can construct from this information is:

`f(x)=-|2x|`