Slope coefficient of linear cost function is

zero
one
two
three

The correct answer is: B. one

The slope coefficient of a linear cost function is one. This means that for every unit increase in output, the cost will increase by one unit.

The other options are incorrect because they do not represent the slope coefficient of a linear cost function.

  • Option A: zero. The slope coefficient of a linear cost function cannot be zero. This is because a linear cost function is a straight line, and a straight line has a non-zero slope.
  • Option C: two. The slope coefficient of a linear cost function cannot be two. This is because a linear cost function is a straight line, and a straight line has a slope of one.
  • Option D: three. The slope coefficient of a linear cost function cannot be three. This is because a linear cost function is a straight line, and a straight line has a slope of one.

In conclusion, the slope coefficient of a linear cost function is one.