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Ira Lisetskai [31]
3 years ago
9

You research the average cost of a tank of gasoline for a certain type of car for several recent years to look for trends. The t

able shows your data. What is the equation for a line of best fit? How much would you expect to pay for a tank of gas in the year 2019?
Note: The table below shows the average cost for one tank of gasoline, not one gallon.


y = 1.006x + 26.40; $47.52
y = 1.006x + 26.40; $58.92
y = 26.40x + 1.006; $47.52
y = 26.40x + 1.006; $58.92

Mathematics
1 answer:
nikklg [1K]3 years ago
8 0
Because the initial value is $26.40, the line must pass through this when x is 0. Thus, the answer is either the first or the second equation.
Next, we calculate the difference between the year 2019 and 1998 and substitute it into the value of x.
2019 - 1998 = 21.
Substituting this into the equation:
y = 1.006(21) + 26.40
y = $47.52

Thus, the first option is correct.
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How many solutions are there for the equation y = x + 2?
defon

Answer:

Infinite solutions.

Step-by-step explanation:

If we let x = 1 then y = 3, or if x = 3 y = 5   and so on.

We can  substitute any number of values of x and find the corresponding value of y so there are infinite solutions.

5 0
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Step-by-step explanation:

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4 0
3 years ago
6x+12y+5+2y+8 what’s the coefficient of y and what’s the constant
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You can find this by combining like terms first.

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