Q16) Find the value for a,b. it f(x)= ax +4x²+bx has stationary point at x1, and inflection point at x = A) a=-2,b=20 B) a=-2,b=-20 a=2,b=-20 D) a=2,b=20 Q17) The slope of the tangent line of the curvex+y=5 at the point (1,-2) - A) 5 1 (11) G) √√4x+4-√√5x+1 Q18) if f(x)= **3 x-3 and it f(x) is continuous everywhere. Find the value t k x=3 A) 3) 1 Cio D)- 8 6 300 319 61 B) Q19) Use local linear approximation to find an approximation value for 8.9 A Di 9 80 80 60 (20) t the graph of the function f(x) is stretched vertically by a factor 2 and then translated 4 imits left, then the equation of the new (4) 2/(x-4)/(x+4) (/(x-2) () 2/(x+4) A) cos xsin x B) secx ©x+cosx D300s 021) Which of the following is an odd function 022) Find the range for the function f(x)=2-3√/4-xa A (-0,2] O [2,00) D) cos x 023) lim B) C) 0 D) 1 21-4 (24) Find /(x), 1/(x)=/(0)=-2 (+1 (11) 34 (2) --- 1 Find an ouryal nich >0, and/">0 TIN