The equation which represent the model of total cost and amount of apples will be
y = 6 +2x
An equation is said to be linear equation in two variables if it is written in the form of ax + by + c=0, where a, b & c are real numbers and the coefficients of x and y, i.e. a and b respectively, are not equal to zero.
According to the given question
Fee for entering the orchard is $6.
Cost of 1 pound apples = $2
y represents the total cost and x represents the amount of apples.
So, the linear equation in two variable, which represent the above model, the total cost and amount of apples will be
y = 6 +2x
Hence, option A is correct.
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