Question

* anything in between two of these means that it's under the radical sign

1.) What is the domain of the function y=3 √ ̅*6x+42?*

A. x≥ 0
B. x≤ 7
C. x≥ -6
D. x≥ -7

2.) What are the domain and range of the function y=2 √ ̅*3x+4*-5

A. x≥ -4/3; y≥ -5
B. x≥ 4/3; y≥ -5
C. x≤ -4/3; y≤ -5
D. x≥ -4/3; y≥ 5

3.) When will the dependent variable in the equation y= √ ̅*x+4*-3 or exceed 4?

A. x≥ -0.17
B. x≥ 45
C. x≥ 48
D. x≥ 53

(skipping 4)

5.) The function t= √ ̅*d/16* models the time t in seconds that an object has been falling after the object has fallen d feet. When will

Answer 1

Hint: Anything that will make the things in the square root negative is beyond the range of the function.

Answer 2

did you get the answers?