There is no particular significance in those results. The world will not end tomorrow and, if the rest of the method for this question is correct, you may even get full marks for it!
7*sqrt(2) = 9.899 to 3 dp
x-y=4
x2-x3+2x = 0 x(-x2+x+2) = 0 x(-x+2)(x+1) = 0 Points of intersection are: (0, 2), (2,10) and (-1, 1)
It is the set of infinitely many points on a straight line in 2-dimensional space. The points satisfy the equation x + y = 2 or y = 2 - x
you put the y intercept at 2, the x intercept at -2/3 and you join those two points.
x/2 = 2 *2 *2 x=4
The points of intersection are: (7/3, 1/3) and (3, 1)
y - 2 = 0
The points of intersection of the equations 4y^2 -3x^2 = 1 and x -2 = 1 are at (0, -1/2) and (-1, -1)
4x = 2 x= 2/4 x= .5
That can be written as 2 x 2 x 2 x 2 and it equals 16.
The easy way is to plot the x- and y-intercept points and draw the lines that passes through those two points. If y = 0, then we have 3x = -2and x = -2/3. So the x-intercept point is (-2/3, 0). If x = 0, then we have -y = -2and y = 2. So the y-intercept point is (0, 2). Plot the points and draw the line.