f(x)=sqrt x+3

Question

graph the leftmost point and three additional points

Answer 1

Hi Janet,

 

To solve this think of f(x) as a a thing that turns x values into y values. Start out like this:

 

f(x)= √x+3

When does f(x)= 0?

 

0 = √x+3

 

0 = x+3

-3     -3

 

x=-3

 

That is left most point (-3,0)

 

For the next part try this:

 

f(1)=  √1+3

f(1)= 2

 

Therefore another point is

 

(1,2)

 

continue to do this

 

f(2) = √5

f(3)=  √6

 

two more points are (2,√5), (3,√6)

 

I hope this helps