Question

Help. picture attached.

Answer 1

a) Domain: all real numbers Range: all real numbers
b) Domain: positive real numbers Range: positive real numbers
c) Domain: all real numbers Range: all real numbers
d) Domain: all real numbers Range: all real numbers
e) Domain: real numbers greater than or equal to 4 Range: positive real numbers
f) Domain: real numbers greater than 3 Range: positive real numbers

Answer 2

um how did u figure it out?

Answer 3

By determining what x could NOT be and then saying it COULD be everything else.

Answer 4

ok so lets say for b) x cannot be -1 or any negative number right? and how do u figure out the range?

Answer 5

Well, is x is positive, what is the square root of x? Positive or negative?

Answer 6

positive?

Answer 7

And what about 5 times a positive number? Positive or negative?

Answer 8

positive

Answer 9

There you go. Also you could use your graphing calculator and graph the function and see what the y values are by looking at the graph.

Answer 10

kk thx

Answer 11

yw