# Algebra i common core jan 16 9 over use this space

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Use this space forcomputations.23Grisham is considering the three situations below.I.For the first 28 days, a sunflower grows at a rate of 3.5 cm per day.II.The value of a car depreciates at a rate of 15% per year after itis purchased.III.The amount of bacteria in a culture triples every two days duringan experiment.Which of the statements describes a situation with an equal differenceover an equal interval?(1)I, only(3)I and III(2)II, only(4)II and III
24After performing analyses on a set of data, Jackie examined the scatterplot of the residual values for each analysis. Which scatter plotindicates the best linear fit for the data?
Algebra I (Common Core) â€“ Jan. â€™16[9][OVER]
25The function,t(x), is shown in the table below.Determine whethert(x) is linear or exponential. Explain your answer.â€“3â€“1135107.552.50Part IIAnswer all 8 questions in this part. Each correct answer will receive 2 credits. Clearlyindicate the necessary steps, including appropriate formula substitutions, diagrams, graphs,charts, etc. Utilize the information provided for each question to determine your answer.Note that diagrams are not necessarily drawn to scale. For all questions in this part, a correctnumerical answer with no work shown will receive only 1 credit. All answers should bewritten in pen, except for graphs and drawings, which should be done in pencil.[16]2CJ2 s2C32.52LJ2 s2C32.5
Algebra I (Common Core) â€“ Jan. â€™16[10]
26Marcel claims that the graph below represents a function.State whether Marcel is correct. Justify your answer.1â€“1â€“22â€“1â€“2â€“32313â€“34â€“4â€“44yxAlgebra I (Common Core) â€“ Jan. â€™16[11][OVER]shesincorrectbecauseonlyonelineisafunction
27Solve the equation fory.(y3)24y12Algebra I (Common Core) â€“ Jan. â€™16[12]56y94y12956y4y214yyatoy2125255toy1254x5545X 52155xyouforgot5by194512tofind the926994912412ayizYtoy1210secondanswerGsky10y3
28The graph below shows the variation in the average temperature of Earthâ€™s surface from 1950â€“2000,according to one source.During which years did the temperature variation change the most per unit time? Explain how youdetermined your answer.â€“0.40.40.30.20.10â€“0.1â€“0.2â€“0.319501960197019801990200019551965197519851995YearO
Algebra I (Common Core) â€“ Jan. â€™16[13][OVER]
29The cost of belonging to a gym can be modeled byC(m)50m79.50, whereC(m) is the totalcost formmonths of membership.State the meaning of the slope andy-intercept of this function with respect to the costs associatedwith the gym membership.Algebra I (Common Core) â€“ Jan. â€™16[14]50mi50permonth79.50flatfeemTotalcostformmonthsofmembershipm0479.502TotalcostIN5150ofadditionalmonthsmembyershipCostforgymmember4Slopeyintersep

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