How do you graph f(x)=3-sqrt(x-2)?

1 Answer
Jul 9, 2015

Have a look:

Explanation:

You first need to check which x values you can use. The argument of your square root must be bigger or equal to zero (you cannot have a negative argument). So you need:
x-2>=0
i.e. x>=2
To plot your function we try x values that gives you an "easy" square root to evaluate, such as 2,3,6,11,18,27...:
enter image source here