What are the domain and range of this function? y= (x+3)² - 5 A. Domain: [-5, ∞)
Range: [-∞,∞)

B. Domain: (-∞.∞)
Range: (-∞,∞)

C. Domain:(-∞,∞)
Range:[-5,∞)

D. Domain: (-5,∞)
Range: (-5,∞)

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?

Simplify (4x^2 - 8xy + 2y^2) - (9x^2 - 4xy - 7y^2) a. -5x^2 + 4xy + 9y^2 b. -5x^2 - 4xy + 9y^2 c. -5x^2 + 12xy + 4y^2 d. -5x^2 - 4xy - 5y^2

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.