SOLUTION: graph the function and describe the domain and range of the function please ! :) f(x)=2√x-2

Algebra ->  Rational-functions -> SOLUTION: graph the function and describe the domain and range of the function please ! :) f(x)=2√x-2       Log On


   

Question 934448: graph the function and describe the domain and range of the function please ! :)
f(x)=2√x-2
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

f%28x%29=2sqrt%28x%29-2
make a table:
x|f%28x%29
2|0.83
1|0
0|-2
3|1.5
4|2
plot points and draw a line through:



domain:
{ x element R : x%3E=0 }
range:
{ f%28x%29 element R : f%28x%29%3E=-2 }