Substitute ah and a for x in the formula for f(x) and simplify to find (f(ah)f(a))/h = 2a 2 h >f(x) = x^22x3 Then (f(ah) f(a))/h =(((ah)^22(ah)3The quadratic function f (x) = a (x − h)2 k is in standard form (a) The graph of f is a parabola with vertex (x, y) = (b) If a > 0, the graph of f opens In this case f (h) = k is the value of f To find f (xh) substitute x = x h into the function f (x h) = (x h)2 − 2(x h) 5 now distribute the brackets f (x h) = x2 2hx h2 − 2x − 2h 5 which may be expressed as f (x h) = x2 2x(h −1) h2 − 2h 5 Answer link
When You Use The Vertex Form Y A X H 2 K What Information Do You Get From A Vertex Form Quora