One part of Clare’s job at an environmental awareness organization is to answer the phone to collect donations. The number of hours she worked each week (x) and the amount of donations in dollars (y) that the organization collected each week for 10 weeks, is modeled by the equation: y= 12x + 41 . Explain the meaning of the slope and y-intercept of the equation in this situation.

Find the value of the variable and the length of each secant segment.

The square root of 9x plus 7 plus the square rot of 2x equall to 7

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)