15) 15) 2 10gm x - 6 logm P2 x2 x2 D) logm A) logm x2 2x C) logm p12 2p6 p8 B) logm 6p2 Compute the exact value of the function for the given x-value without using a calculator. 16 16) f(x) = - 3 - 10% for x = 1/3 B) - 10 ~3 C) - 3 V10 D) - 10 3/10 Solve the equation. EXTRA CREDIT - You must show all steps! 17) 17) log (x - 9) = 1 - log x A) -10 B) -10, 1 C) -1, 10 D) 10 Solve the equation. This is worth 2 points. Show all work! 18) log 4x = log 3 + log (x + 4) 18) A) 12 B) -12 C) 12 Describe how to transform the graph of the basic function g(x) into the graph of the given function f(x) 19) f(x) = In (-x) +9; g(x) = In x 19) A) Reflect across the x-axis and translate 9 units to the right. B) Reflect across the y-axis and translate 9 units to the right. C) Reflect across the y-axis and translate 9 units up. D) Reflect across the x-axis and translate 9 units down. Solve the equation by changing it to exponential form. 20) log x = 3 20) A) x = 103 B) x = 310 C) x =-30 D) x = 30 21) log x=-4 21) A) x = - 1 B) x = - (4)6 C) x = - 4 64 log64 D) x =-64