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Verdich [7]
3 years ago
5

Ervin sells vintage cars. Every three months, he manages to sell 13 cars. Assuming he sells cars at a constant rate, what is the

slope of the line that represents this relationship if time in months is along the x-axis and the number of cars sold is along the y-axis?
Mathematics
1 answer:
Vladimir [108]3 years ago
7 0
Ervin sells 13 cars per 3 months so 13/3=4.3 cars per month. 

this means that 

___month___     ___cars sold___

          1                         4.3
          2                     2*4.3
          3                     3*4.3
          :                           :
          n                     n*4.3

the linear function representing the cars sold per month is f(n)=4.3*n

(Practically, this means that the expected number of cars sold after n months is a whole number close to 4.3*n.)

Answer:

the slope is 4.3 (13/3)

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<h3>Given</h3>

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<h3>Find</h3>

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<h3>Solution</h3>

First of all, look at how this is evaluated in terms of what happens to a value for s.

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To solve for s, you undo these operations in reverse order. The "undo" for addition is adding the opposite. The "undo" for multiplication is division (or multiplication by the reciprocal).

... P = 3r + 2s . . . . . . starting equation

... P - 3r = 2s . . . . . . -3r is added to both sides to undo addition of 3r

... (P -3r)/2 = s . . . . . both sides are divided by 2 to undo the multiplication

Note that the division is of everything on both sides of the equation. That is why we need to add parentheses around the expression that was on the left—so the whole thing gets divided by 2.

Your solution is ...

... s = (P - 3r)/2

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Darya [45]

Answer:

Answer:

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Step-by-step explanation:

Step-by-step explanation:

A linear function has the form

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3a = - 12 ( divide both sides by 3 )

a = - 4, thus

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