Radical Functions

Consider y = −√x. Is y a function of x? Why or why not? Is it true that |y| is always less than x? Show that it is or give a counter example.

How are radical functions similar/different to linear, quadratic, or exponential functions?

How are radical functions similar/different to linear, quadratic, or exponential functions?

How do the values of a, h and k in the radical function f(x)=a√x−h+k, affect the domain and range of a radical function? 

i found 6x2 √5 , but i cannot find the restrictions? If anyone can help me with this ive been stuck on this question.  Thank you

for example : f(x)=(square root) x+2

I need this answered! If you could also explain how you got the answer would be helpful also   

(4/X^2+X-6)-(1/X^2-4)=(2/X^2+5X+6)   Please help me solve

a object is moving at (3+sqrt(3))per second. How long does it take to go 20 feet   if you could show me how to do it that would be great (as in typing it out)       -bob

The side length of a 243-gram copper cube is 3 centimeters. Use this information to write a model for the radius of a copper sphere as a function of its mass. Then, find the radius of a copper... more

need steps broken down using words i.e, that apply : principal root, product rule, quotient rule, reciprocal and nth root

how do you find the domain and range of this equation? I have already graphed the equation, but I don't know how to find the domain and range of this equation.... please help me. I need the answer.