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All that matters once you have y = -2x is the y-intercept.
Examples:
y = -2x +3
y = -2x - 8
y = -2x + 4
You can change the y-intercept to whatever numbers you want.
One extra hint: All the lines with the slope of -2x will be parallel on a graph, no matter what the y-intercept is.
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What are lines given by the equations y equals 2x and y equals 2x plus 1?
They are parallel.
The lines given by the equations y equals 2x and y equals 0.5x are?
Neither perpendicular nor parallel
The solution to the system of equations y equals 2x and y equals -x plus 3 is?
x = 1 and y = 2
What is the common point of these equations x equals 2 y equals 2x plus 1?
If X equals 2, then y = 5
What does X and Y equal in the equations 2X equals 3Y and 4X-3Y equals 12?
y = 4, x = 6
What are lines given by the equations y equals 2x and y equals 2x plus 1?
They are parallel.
The lines given by the equations y equals 2x and y equals 0.5x are?
Neither perpendicular nor parallel
How many solutions does y equals 2x and y equals 2x-4 have?
There is no solution for those equations because the lines are parallel so, they never touch.
The solution to the system of equations y equals 2x and y equals -x plus 3 is?
x = 1 and y = 2
What is the solution of the following system of equations 3y - 2x equals 3 y equals x?
x = y = 3
What is the common point of these equations x equals 2 y equals 2x plus 1?
If X equals 2, then y = 5
How many solutions does 2x plus y equals 5 and 2x plus y equals 4 have?
None. When these two equations are graphed, the two lines are parallel. Since they never intersect, there is no point that satisfies both equations.
What does X and Y equal in the equations 2X equals 3Y and 4X-3Y equals 12?
y = 4, x = 6
Y equals 4x minus 8 and y equals 2x plus 10 sole using system of equations using substitution?
y = 4x-8 and y = 2x+10 4x-8 = 2x+10 4x-2x = 10+8 2x = 18 x = 9 Substitute the value of x into the original equations to find the value of y: Therefore: x = 9 and y = 28
3x - y equals 9 2x plus y equals 6?
3x-y = 9 2x+y = 6 Add both equations together: 5x = 15 x = 3 and y = 0
What is the answer to Y equals 2X plus 6 2X-Y equals 2?
eqn 1 Y = 2X + 6 eqn 2 2X - Y = 2 Rearrange eqn2 to isolate Y eqn2 Y = 2X - 2 so 2X + 6 = 2X - 2 subtracting 2X from both sides we get 6 = -2 As this is impossible this set of equations can not be solved.
What are the order pairs for 2x plus y equals 1 and 2x - y equals -5?
These are equations of two straight lines. Provided the equations are not of the same or parallel lines, there can be only one ordered pair. So the answer is - (not are) : (-1, 3).
