A charity launches a marketing effort (a giving campaign), and puts all the money collected into a designated "campaign account." The amount of money collected in the campagin account is growing over time. The function f gives the amount of money in the campaign account, in dollars, 6 days after the launch of the giving campaign. The charity director has collected this information: Charity campaign derivative values campaign derivative values, PM 1,000 6,000 8,000 5,000 3,000 1,000 500 400 Let's focus on day t=7. This table of f'(t), derivative values, allows us to draw inferences about the "campaign account" function, t)