1
Y = 3X - 2
zero out the variables in turn
Y = 3(0) - 2
Y = - 2
==========================
Supervisors have taken me to the woodshed when I deleted an answer, so I've
left the first answer in place above. But if you take that one too seriously, then
you'll lose the whole idea of the "ordered pair".
There are an infinite number of ordered pairs that satisfy the equation. Just pick
any number you want for 'x' . . . anything at all . . . then put it in place of 'x' in
the equation, and do the arithmetic to figure out what 'y' is. When you do that,
you have one 'ordered pair' ... the number you picked for 'x', and the number that
'y' turned out to be.
The first answer up above showed you how to find twoordered pairs. In fact, the
two that it found happen to be the x-intercept and the y-intercept when you draw
a graph of the equation. But every point on the graph is another ordered pair, and
there are an infinite number more of them.
3x+5y=48 5y=48-3x-3x+5y=12 -3x+(48-3x)=12-6x=-36x=65y=48-3(6)5y=30y=6(6,6)
-3+(-5)2=22
3x+4=10 To solve: 3x+4=10 3x=6 x=2
3x-2 = 2x+3 3x-2x = 3+2 x = 5
Add 5 to both sides of the equation to get rid of the - 5. -3x - 5 + 5 = -20 + 5 Solve and simplify. -3x = -15 Divide both sides of the equation by -3. x = 5
There are an infinite number of ordered pairs that satisfy the equation.
x = 5 and y = 4
Any pair of numbers at all, as long as one of them is triple the other one.
y = 3x =3(6) = 18 ... the ordered pair is (x,y) = (6,18)
3x
The ordered pair is (5, 4).
3x + 4y = -4 defines a line in 2-dimensional space and the coordinates of every point on the line is an ordered pair that satisfies the equation. I have neither the time nor the inclination to list an infinite number of ordered pairs.
{-4,-5}
y=3x
Without an equality sign it can not be considered to be an equation and the - or + values of y and 12 are not given
really depends. 12x - 8y = 48 3x - 2y = 12. You can't decide, but one ordered pair is (4,0)
Substitute the value for y given by the second equation into the first equation to result in 3x - 15 = x2 - x -20. Subtract (3x - 15) from both sides and exchange sides to yield x2 - 4x - 5 = 0. This can be factored into (x - 5)(x + 1) = 0, which is true when x equals either 5 or -1. If x = 5, y = 0 and if x = -1, then y = -18. Therefore, either 5,0 or -1,-18 is an ordered pair solution to the given equation system.