# Question #c0eb1

##### 1 Answer

Aug 13, 2017

#### Answer:

The function appears to be

#### Explanation:

This looks like the graph of the upper half of a parabola with horizontal axis.

The vertex is at

The graph also appears to pass through the points:

#(-7, -1)# ,#(-4, 0)# ,#(1, 1)# ,#(8, 2)#

If we add

#1, 4, 9, 16#

recognisable as the first four positive square numbers.

So it appears that the formula of the curve may be written:

#y = sqrt(x+8)-2#

This function intercepts the

So

#0 = sqrt(x+8)-2#