Question

20. Solve the following logarithmic equation for the unknown variable and show all work. 3 loga * -log125 = 0. [5 Points). 21. The following graphs show the scatterplot relationships for two different sets of data. Describe each graph as Linear or Non-Linear by circling the correct choice. For each graph also choose which regression equation would be the best choice to use for developing a mathematical model to describe the data, i.e. y=mx+b y=ax? +bx+c y=ca'. [4 Points). Linear or Non-Linear Linear or Non-Linear Regression Equation: Regression Equation: 22. Write the equation of a quadratic that has a vertex at (-2,3) and goes through the point (0,-5). Show all work that leads to the final solution. (Your equation does not have to be in standard form) [5 Points).

Answer 1

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Solutions we have 3 Хоч Х о (125) Зө ч ។ Expo»ent propr+ using y Joaq = y logan -) 3 Jo9 у х 4), (5) - D Ч -) з оч 5 з Jo), со — з( Jos,* - Лоз, Н. =) Ч 5 Jo) у За ч comparing both base is hold Equality xponen+ От ba side same (4) ТО must be Equal Hence, и : 5 Answer,