m. Luuvauuu . a n 7. The point P(a ,b) where a and b are positive real numbers lies on the line y + 2x 5 : 0. V P ( a ,b ) x 0 a. Let s be the distance from the origin 0 to the point P. Find the distance x in terms of a. b. Find, using calculus, the minimum value of s and the value of a for which this occurs, 9. If i log, 3X2+4 = bx ,nd the value OH) and the function g(x)i dx 4x" +3 g(x)