Independent: the value of an automobile bought in 2006 continues to decrease as time passes. this is
called depreciation. two years after the car was bought, it was worth $17,500; four years after it was
bought, it was worth $14,800, write a linear equation to describe the relationship between value of an
automobile y after so many years x (after time of purchase). use this equation to estimate the value of
the same automobile in 2012.

So we have this data:

- After 2 years, it's worth 17500$

- After 4 years, it's worth 14800$

Let's see how much decreases per year:

4 - 2 = 2 years difference

17500 - 14800 = 2700$ difference

2700$ / 2y = 1350$/y (amount the value of the car decreases per year)

Now we find how much it was worth at the beginning, for this we add 1350$ twice (for the 2 years) to 17500 (the amount it was worth 2 years after it was bought):

17500 + 2 * 1350 = 20200$

Our equation, then:

Y = 20200 - 1350X

For 2012 (6 years after 2006, the year it was bought):

Y = 20200 - 1350 * 6 = 20200 - 8100 = 12100$

fahrenheit

step-by-step explanation:

fahrenheit is more precise than celsius. the ambient temperature on most of the inhabited world ranges from -20 degrees fahrenheit to 110 degrees fahrenheit—a 130-degree range. on the celsius scale, that range is from -28.8 degrees to 43.3 degrees—a 72.1-degree range. this means that you can get a more exact measurement of the air temperature using fahrenheit because it uses almost twice the scale.

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation: