Write an Equation for the Linear Function and Use It $R = 47.8 t + 0.03 ; 956.03$

question 65

Multiple Choice

Write an equation for the linear function and use it to answer the given question.
-Normaltown High School's pool record for the 100-yard freestyle was 47.8 in 1990. Assume that the record falls at a constant rate of 0.03 second per year. What does the model predict for the
Record in 2010?

• A) \(R = 47.8 t + 0.03 ; 956.03\) seconds
• B) \(\mathrm { R } = 47.8 \mathrm { t } - 0.03 ; 955.97\) seconds
• C) \(\mathrm { R } = 47.8 + 0.03 \mathrm { t } ; 48.40\) seconds
• D) \(R = 47.8 - 0.03 \mathrm { t } ; 47.20\) seconds

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