What is the domain of the function on the graph? 5
all real numbers
4
3
O all real numbers greater than or equal to 0
O all real numbers greater than or equal to -2
o all real numbers greater than or equal to -3
2
1
1
2.
3 4 5
x
-5-4-3-21
-2
-3-
-4
-5
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Each equation given below describes a parabola. which statement best compares their graphs? x = 2y^2 x = 8y^2

Ahome improvement store rents it’s delivery truck for $19 for the first 75 minutes and $4.75 for each additional 1/4 hour. if a customer rented the truck at 11: 10 am and returned the truck at 1: 40 pm the same day, what would his rental cost be?

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?