Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "equals", "squared", "cubed" etc. Please use "brackets" (or parentheses) because it is impossible to work out whether x plus y squared is x + y2 of (x + y)2.
Thanks to the browser, it is not possible to tell what the inequalities are.
11
Without a second independent equation, it's not a 'system' yet.
If you mean: y = 2x-10 then it is 2x-y-10 = 0
If you mean: y = 2x+5 then it is a straight line equation.
If you mean: y = 2x-4 then it is equal to a straight line equation
y=2x+4 is in slope intercept form
6
The slope of y = 2x - 4 is 2. (y = mx + b, where m is the slope, in this case 2.)
Thanks to the browser, it is not possible to tell what the inequalities are.
y2x - just double the coordinate of y to get x. xy12 - i have no idea
If you mean: y = 2x and 2y = -x+4 then they are positive and negative straight line equations
If you mean: y = 2x-4 and (1, 5) then the parallel equation is y = 2x+3
11
(4,1)
If you mean: y=2x+4 and x+2y=12 => y=-1/2x+6 which means that they are perpendicular to each other.
y2x is an expression, which cannot be graphed because we don't know what it equals. y = 2x, y2 = x, and 2y (or y2) = x are all things that could actually be graphed.