One of your company's salesmen estimates he will drive 20,000 miles this year and each of the next two years. As the service man
ager for the company's fleet of six-cylinder compact automobiles, you are asked to determine the total costs for each of the three years. Year 1 Total Cost: $ Year 2 Total Cost: $ Year 3 Total Cost: $
1 answer:
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If you are looking for the equation of the line,
Use Point Slope Form
y-4 = 3(x-1)
y-4 = 3x-3
y = 3x + 1
Use Point Slope Form
y-4 = 3(x-1)
y-4 = 3x-3
y = 3x + 1
Answer:
Step-by-step explanation:
Given:
The level of a lake is falling linearly.
On Jan 1, the level is 452 inches
On Jan 21, the level is 378 inches.
Now, a linear function can be represented in the form:
Where, 'm' is the rate of change and 'b' is initial level
So, let Jan 1 corresponds to the initial level and thus b = 452 in
Now, the rate of change is given as the ratio of the change in level of lake to the number of days passed.
So, from Jan 1 to Jan 21, the days passed is 21.
Change in level = Level on Jan 21 - Level on Jan 1
Change in level = 378 in - 452 in = -74 in
Now, rate of change is given as:
Hence, the function to represent the lake level is
Where, 'x' is the number of days passed since Jan 1.