Question

the cost of gasoline is $4 per gallon.
y = 4x
use the direct variation equation to calculate the cost for 11 gallons of gasoline.
$ ?

Explanation:

Step1: Identify the variables

In the equation \( y = 4x \), \( x \) represents the number of gallons of gasoline, and \( y \) represents the total cost. We need to find the cost for 11 gallons, so \( x = 11 \).

Step2: Substitute \( x = 11 \) into the equation

Substitute \( x = 11 \) into \( y = 4x \), we get \( y = 4\times11 \).

Step3: Calculate the value of \( y \)

Calculate \( 4\times11 = 44 \).

Answer:

\( 44 \)