Problem

For \(M(t)~=~\sqrt{t~-~3}~-~2\), where \(t~\ge~3\) is days after treatment and \(M\) is moisture change in percentage points, find \(\text{both}~\text{intercepts}\), check feasibility, and interpret the contextual intercept.

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Algebra: x-intercept (7,0); no y-intercept because t=0 is outside the radical domain. Feasibility: both are claimed contextual without checking t≥3. Interpretation: day 7 and day 0 are both used.

Algebra: x-intercept (5,0); no y-intercept because t=0 is outside the radical domain. Feasibility: day 5 satisfies t≥3. Interpretation: moisture change is claimed to reach 0 on day 5.

Algebra: x-intercept (7,0); y-intercept (0,−2). Feasibility: day 7 satisfies t≥3, but day 0 does not. Interpretation: only the day-7 zero is contextual.

Algebra: x-intercept (7,0); no y-intercept because t=0 is outside the radical domain. Feasibility: day 7 satisfies t≥3, while day 0 does not. Interpretation: moisture change is 0 on day 7.

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For \(M(t)~=~\sqrt{t~-~3}~-~2\), where \(t~\ge~3\) is days after treatment and \(M\) is moisture change in percentage points, find \(\text{both}~\text{intercepts}\), check feasibility, and interpret the contextual intercept.

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