What is the domain and range of f (x) = -3/4√x-1+4

Find the domain by finding where the function is defined. The range is the set of values that correspond with the domain.

Domain:

[0,∞), x[0, ∞), x≥0

Range: (-∞,3], y

Harley and Noreen were making kites. Harley has 3/4 of a yard of yellow kite string. Noreen has 6/8 of a yard of green kite string. She says that she has more kite string than Harley. How can Harley draw a number line to show that Noreen is incorrect? Write a sentence to explain how you solved the problem.