Taltson lake is in the canadian northwest territories. this lake has many northern pike. the following data was obtained by two fishermen visiting the lake. let x = length of a northern pike in inches and let y = weight in pounds. use your calculator to draw a scatter diagram. using the scatter diagram (no calculations), would you estimate the linear correlation coefficient to be positive, close to zero, or negative? x (inches) 20 24 36 41 46 y (pounds) 2 4 12 15 20

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After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? check all that apply. a. 9% + 3x2 = 14 + x-1 b. -x+ + 4x + 7 = -32-9 c. 5x + 4 = 3x4 - 2 d. 2x2 + x2 + x = 30

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)