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The points (3, 24) and (7,56) represent points of a function where y, the number of photographs, varies directly with x, the
number of pages in an album. Which statement describes another point on the graph of this function?
O A 50-page photo album holds 400 photographs.
O An 80-page photo album holds 560 photographs.
O A 100-page photo album holds 8,000 photographs.
O A 900-page photo album holds 8,400 photographs.

Will give brainliest summations with algebraic expressions image shown

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)

Factor the polynomial. b^2 + 4b + 4