Solution-Identify the x-variable and the y-variable

Identify the x-variable and the y-variable

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Reference no: EM131861174

1. The value of a machine depreciates by an equal amount each year of its useful life. Suppose the machine was purchased for $18,000 and has a useful life of five years, after which time it has a scrap value of $2,000.

(a) Identify the x-variable and the y-variable.

(b) Construct the data table for this problem.

(d) What is the annual depreciation rate?

(e) What is the value of the machine two and one-half years after its purchase?

(f) When will the value of the machine be $6,000?

Give your final answer in terms of years and months.

2. There are two common units of measurement for temperature: degrees Fahrenheit (ºF) and degrees Celsius (ºC).

Water freezes at: 0 ºC and 32 ºF

Water boils at: 100 ºC and 212 ºF

Can we derive a linear formula by converting from ºF to ºC and back again? Of course we can!

(a) Use the above data to find a formula for ºF as a function of ºC

Hint: leave m as a fraction

Hint Hint: F as a function of C is the same thing as x as a function of y, so here, your F is your x and C is your y.

(b) Use the above data to find a formula for ºC as a function of ºF

Hint: leave m and b as functions

Compare your answer from (b)

(d) You are going on a business trip to Bzwakii, where the average temperature is 11 ºC. How should you dress?

(e) You are sending a recipe for Butterscotch Brownies to your friend in Canada. Your recipe calls for the brownies to be baked at 350 ºF, What is the equivalent temp in ºC?

Reference no: EM131861174

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Identify the x-variable and the y-variable

Reference no: EM131861174

Reference no: EM131861174

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