On a linear, non-threshold dose-response curve, where does the curve intersect the x-axis (abscissa)?

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Multiple Choice

On a linear, non-threshold dose-response curve, where does the curve intersect the x-axis (abscissa)?

Explanation:
In a linear, non-threshold dose-response, the response is directly proportional to the dose with no dose required to start producing an effect. That means at zero dose there is zero response, so the curve must cross the dose axis (x-axis) right at the origin. There’s no offset on the x-axis, which is why the intersection is at the very start.

In a linear, non-threshold dose-response, the response is directly proportional to the dose with no dose required to start producing an effect. That means at zero dose there is zero response, so the curve must cross the dose axis (x-axis) right at the origin. There’s no offset on the x-axis, which is why the intersection is at the very start.

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