# MAT116- Algebra 1A

What is the difference between domain and range? Describe a real-life situation that could be modeled by a function.
appropriate values even when they are defined by your classmates’ function. A function could, for
example, indicate the amount of bone strength (y) in a living human body over time in years (x). It
would not make sense to look at negative years, because the person would not yet be born.
Likewise, looking beyond 100 years might not make sense, as many people do not live to be 100.

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3. 👁 400
1. 7-6x>1-5x

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2. I need a answer on this question abouve as a.s.a.p...

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3. Describe the values for x that may not be appropriate values even when they are defined by your classmates’ function. A function could, for example, indicate the amount of bone strength (y) in a living human body over time in years (x). It would not make sense to look at negative years, because the person would not yet be born. Likewise, looking beyond 100 years might not make sense, as many people do not live to be 100.

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4. Sylvia walked to Cathy's house at 2km/h, and then rode a bicycle back to her own house at 10km/h. The entire trip took 3 hours. How long a time did Sylvia walk?

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5. stop cheating and do you're homework, how do you feel accomplished getting a degree if you didn't do the work?

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6. In 1920 the record for a certain race was 445.7 sec. In 1970, it was 44.2 sec. Let R(t) = the record in the race and t = the number of years since 1920.
a) Find a linear function that fits the data R(t) =
b) What is the predicted record for 2003?
c) What is the predicted record for 2006?
d) In what year will the predicted record be 42.70 seconds?

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