They are expressions.
(3, 1)
y=-10x-4
x = 1 and y = -2
x =1, y=1
When x = 1 then y = 4
-1
1
y equals x plus 4 when y equals 0 then x equals 2i i is the square root of negative 1
It is (-1, 3).
x = 3 y = 4 2x + y - 1 = (6) + (4) - 1 = 9
The ordered pair is (1, 3).
y = 3x + 1 y = 3(1) + 1 y = 3 + 1 Y = 4