2x+5y=20 Solve for y
-2x -2x
5y=20-2x
5 5 5
y=4-2x
5
If you mean: 4x+5y=-20 then the y intercept is (0, -4) and x intercept is (-5, 0)
2 and 5 are coefficients of x and y respectively.
Answer: y = -2/5x-14/5 which also can be written as 5y = -2x-14 or in the general form of the equation of a straight line as 2x+5y+14 = 0
The equation 2x-5y=-1 has a graph that is a line. Every point on that line is an ordered pair that is a solution to the equation. So pick any real number x and plug it in. You will find a y and that pair (x,y) is an ordered pair that is a solution to this equation. For example, let x=0 Then we have -5y=-1so y=1/5 The ordered pair (0, 1/5) is a point on the line and a solution to the equation.
x intercept = (5, 0) y intercept = (0, -2)
-2x = 20 + 5y-2x - 20 = 5y-2/5x - 4 = yX Intercept = (-10,0) or -10Y Intercept = (0,-4) or -4
x-intercept | -10 y-intercept | 4 slope | 2/5 = 0.4
what is the solution of x-5y=10 and 2x-10y=20
0 = -2x + 5y - 15 -5y = -2x - 15 y = 2x/5 + 3
2X - 5Y = 10 ???? If so. 2X - 5Y = 10 - 5Y = - 2X + 10 Y = (2/5)X - 2 ================
Known equation: 5x -2y=3 => y=5/2x -1.5 Slope of equation: 5/2 Perpendicular slope: -2/5 Perpendicular equation: y--4=-2/5(x-3) => 5y--20=-2x+6 => 5y=-2x-14 Therefore the perpendicular in its general form is: 2x+5y+14 = 0
Perpendicular slope: -2/5 Perpendicular equation: y--4 = -2/5(x-3) => 5y--20 = -2x-3 => 5y = -2x-14 Perpendicular equation in its general form: 2x+5y+14 = 0
2x-5y = -10 -5y = -2x-10 y = 2/5x+2 which is in slope intercept form
Without an equality sign the terms given can't be considered to be an equation. But straight lines are parallel to each other if they have the same slope and different y intercepts.
2
Another straight line equation is needed such that both simultaneous equations will intersect at one point.
Known equation: 5x-2y = 3 or y = 5/2x -3/2 Slope of known equation: 5/2 Slope of perpendicular equation: -2/5 Perpendicular equation: y- -4 = -2/5(x-3) => 5y =-2x-14 Perpendicular equation in its general form: 2x+5y+14 = 0