y can be anything at all, as it represents an independent variable. In a concrete example, one may have x representing a family size, but y could be anything - even something totally unrelated, like how many elephants there are! One of the many purposes of graphing x with y is to demonstrate a relationship between them that can then be described as a function, which hopefully provides insight into the world.
If x+y = 3 and y times x = 2 then y = 1.
X = 2 and Y = 3.
If x=4... then 'y' MUST equal 3 !
x = -2 and y = 3
This is definitely false; if x=2 and y=3, x to the y power is 8, but y to the x power is 9, which are not equal.
that is an equation of a line with a slope of 1 and y-intercept of -3 and x-intercept of 3
the answer is 42
No it equals 6 because x and y equal 1 in themselves
y=x y=6-x Set the two equations equal to each other to yield a solution: x=6-x 2x=6 x=3 x=3 will satisfy both equations, that is plugging in x=3 will give the same value for y y=(3)=3 y=6-(3)=3
x=y
y = 12. It's the transitive property. y = 12 = 3x.
if and x equal -18 find y -18 * 1/3 = -6