For $C(n)=7n+25$ dollars for $n$ items, identify and interpret the parameter representing predicted cost at $\text{zero}~\text{items}$.

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The intercept, $25 per item, means predicted cost increases by $25 for each item.

The slope, $7, means predicted cost is $7 when 0 items are purchased.

The slope, $7 per item, means predicted cost is $7 when 0 items are purchased.

The intercept, $25, means predicted cost is $25 when 0 items are purchased.

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Curriculum context

Course: Math I
Standard: S-ID.7
Category: Statistics and Probability
Domain: Interpreting Categorical and Quantitative Data
Objective: Interpret slope and intercept of a linear model in the data context.
Problem type: Choose the correct interpretation of a model parameter