The equation that relates the total amount of gasoline in the tank is;
y = x + 4.
<h3>What is defined as the linear equation?</h3>
- A linear equation is just an algebraic equation with only a constant and the first-order (linear) term of the form y=mx+b, for which m is the slope and b is the y-intercept.
- The above is sometimes referred to as a "linear equation of 2 factors," in which y and x are the variables.
- Although they can, it is often easier and faster to use a computational method to arrive at a numerical answer.
- The actual power of equations is they offer a very unique way to describe many different functions in the world.
For the given question;
The amount of gasoline already present in tank is 4 gallons.
The number of gallons filled above the the previous gasoline is x.
Thus, now the total gasoline present in this tank is x + 4.
If y shows the total gasoline in tank;
Then,
y = x + 4.
Therefore, the total amount of gasoline present in tank is given by equation is; y = x + 4.
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