Which grach has a rate of change of zero?

On a coordinate plane, a vertical line is at x = 3. On a coordinate plane, a horizontal line is at y = 3. On a coordinate plane, a line with positive slope goes through (0, 0) and (1, 3). On a coordinate plane, a line with negative slope goes through (negative 1, 3) and (0, 0).

in if you ask questions, the points are taken from your total and given to the one who answered it..

so if i have 30 points and i ask a question for 5 points, then when someone asks a question i will lose 5 points and the answerer earns 5

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