Indifference Curve moves
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Indifference Curve moves
From left to right and down-wards
From left to right and upwards
From left to right but parallel to Y-axis
Nove upwards parallel to Y-axis
Indifference curves are convex to the origin and slope downward from left to right. This negative slope represents the trade-off between two goods - as you consume more of one good, you must consume less of another to maintain the same level of satisfaction. They cannot slope upward (which would imply more of both goods gives same utility) or be vertical/horizontal.