In Exercises 9 to 18, use the method of completing the square to find the standard form of the quadratic function. State the vertex and axis of symmetry of the graph of the function and then sketch its graph. f(x) = x2 - 10x + 3

MATH121 CHHA APPTTEER R4NOOT TEESS Lesson4.5–CombiningFunctions EXAMPLE1. Find(f°g)(2),whenf(x)=x +1andg(x)=x +x . 3 2 (First,weneedtofindthefunctiong(2).) g(2)=2 +2 =12 (Now,substitutethevalue12inforxinthe functionf(x).) f(12)=12 +1=145 (f°g)(2)=145