Question

When x represents whole numbers less than 200, the function f(x) = 2x - 20 represents the profit earned from selling x carnations for a school fund-raiser. What is the value of f(140)?

Answer 1

260

Explanation:

When x represents whole numbers less than 200, the function

f(x) = 2x - 20 .......... (1)

represents the profit earned from selling x carnations for a school fund-raiser.

Therefore, the profit earned from selling 140 carnations for the school fund-raiser will be given by the equation (1) as

f(140) = 2(140) - 20 = 280 - 20 = 260.

Therefore, 260 is the value of f(140). (Answer)