+72 
+129899 I'm not sure about the first part....but....for the second....as long as each different value of the independent variable - usually denoted as x - produces only one value for the dependent variable - usually denoted as y - we have a function.....this passes what is known as the "vertical line" test
Example:
y = x^2 is a function because each value of x only produces only one y
But.....
x = y^2 is not .......note y = -2 and y = 2 produce the same x.......thus, one value of x - namely, 4 - is associated with two different y values........
+129899 I'm not sure about the first part....but....for the second....as long as each different value of the independent variable - usually denoted as x - produces only one value for the dependent variable - usually denoted as y - we have a function.....this passes what is known as the "vertical line" test
Example:
y = x^2 is a function because each value of x only produces only one y
But.....
x = y^2 is not .......note y = -2 and y = 2 produce the same x.......thus, one value of x - namely, 4 - is associated with two different y values........
+129899 Well.....since most of us only function at a 4th grade level......we're probably over our heads, here......
+1491 No gmitc1416... what CP means is that the average adult only uses his/her thinking capacity at a fourth grade level, this is why you gotta go to school and use this knowledge to your advantage. WE MUST BECOME THE DIFFERENCE! Anyways I'm hopeless in this segment of math so I have no input towards to the question.
