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Which graph represents the function?

 

f(x)= Sqrt x-1

 

Graphs:

 

Graph of a square root function. The horizontal axis ranges from negative 3 to 7 in increments of 1. The vertical axis ranges from negative 2 to 8 in increments of 1. The function begins at begin ordered pair 0 comma 1 end ordered pair and passes through begin ordered pair 1 comma 3 end ordered pair and begin ordered pair 4 comma 5 and ordered pair.

Graph of a square root function. The horizontal axis ranges from negative 3 to 7 in increments of 1. The vertical axis ranges from negative 2 to 8 in increments of 1. The function begins at begin ordered pair negative 1 comma 0 end ordered pair and passes through begin ordered pair 0 comma 2 end ordered pair and begin ordered pair 3 comma 4 and ordered pair.

Graph of a square root function. The horizontal axis ranges from negative 3 to 7 in increments of 1. The vertical axis ranges from negative 2 to 8 in increments of 1. The function begins at begin ordered pair 1 comma 0 end ordered pair and passes through begin ordered pair 2 comma 1 end ordered pair and begin ordered pair 5 comma 2 and ordered pair.

Graph of a square root function. The horizontal axis ranges from negative 3 to 7 in increments of 1. The vertical axis ranges from negative 2 to 8 in increments of 1. The function begins at begin ordered pair 1 comma 0 end ordered pair and passes through begin ordered pair 2 comma 2 end ordered pair and begin ordered pair 5 comma 4 and ordered pair.

 Mar 11, 2018
 #1
avatar+249 
0

The second to last one. It has the correct x-intercept (1,0) and has the correct slope.

 Mar 11, 2018
 #2
avatar+99286 
+1

I think you mean

 

f(x)= Sqrt (x-1)  becasue none of them are   f(x)= Sqrt x-1

 

f(x)= Sqrt (x-1)

you know   Sqrt (4) = 2

and

f(x)= Sqrt (5-1)=sqrt(4)

 

so  lets think about  x=5 

f(5)= sqrt(5-1)  =   sqrt4  =  2

So (5,2) must be a point on the graph.

So which is the correct graph?

 Mar 11, 2018
 #3
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0

The last graph?

Guest Mar 11, 2018
 #4
avatar+99286 
0

Does the last graph have the point (5,2) on it?

 Mar 12, 2018

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