Select a set of values for x from its domain. Calculate the corresponding values of y using one of the given equations. Plot the points on the coordinate plane and join the points. Repeat for the second equation, to give a second line.
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.
If you mean y = 2x then it is a straight line equation
y=2x+4 is in slope intercept form
The slope of y = 2x - 4 is 2. (y = mx + b, where m is the slope, in this case 2.)
Without a second independent equation, it's not a 'system' yet.
Without any equality signs the given expressions can't be considered to be equations so therefore there are no solutions.
Thanks to the browser, it is not possible to tell what the inequalities are.
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.
Without any equality signs the given expression can't be considered to be straight line equations.
If you mean: y = x^2+4x+3 and y = 2x+6 Then the solution is: x = 1 or x = -3
If you mean: y = 2x and 2y = -x+4 then they are positive and negative straight line equations
Without any equality sign and not knowing whether or not 2 is + or they cannot be classed as equations
y2x - just double the coordinate of y to get x. xy12 - i have no idea
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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".
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