Find the Average Rate of Change of the Function from X₁

Multiple Choice

Find the average rate of change of the function from x₁ = 1 to x₂ = 5.? $$f ( x ) = x ^ { 2 } + 18 x - 4$$ ?

A) The average rate of change from x₁ = 1 to x₂ = 5 is 24.
B) The average rate of change from x₁ = 1 to x₂ = 5 is -4.
C) The average rate of change from x₁ = 1 to x₂ = 5 is -24.
D) The average rate of change from x₁ = 1 to x₂ = 5 is -18.
E) The average rate of change from x₁ = 1 to x₂ = 5 is 4.