0. A line with constant y-value is horizontal, so its gradient is 0, meaning it neither goes up nor down.
In the straight line equation of y = 2x+14 the slope or gadient is 2 and the y intercept is 14
y = 3x + y => x = 0then y = x - 9 => y = 0 - 9 = -9.
18
Y+7=9 equals 2+7=9.
y=9
3x-y=9 y=3x-9
y -3 = 9 y = 9+3 y = 12
-3
8.3
X = Y = 9 The answer must be 9, since it says it in the problem. x = 9, y=9, and x = y are all true based on the given info.
9
y = -2/5