Question

How do you graph `y = sqrt(x + 2)`?

Answer 1

see explanation

Explanation:

`sqrt(x+2)>=0`

We can plot some coordinate points by choosing key values for x.

`x=-2toy=sqrt0=0rArr(-2,0)`

`x=2toy=sqrt4=2rArr(2,2)`

`x=7toy=sqrt9=3rArr(7,3)`

Plot these 3 points and draw a smooth curve through them.
graph{sqrt(x+2) [-10, 10, -5, 5]}