Question (b) please. Thank you

(1 point) Use the two graphs below to answer the following questions. (a) The graph of y = g (a) is the graph of y = f (a) scaled horizontally by expansion by a factor of 2 and scaled vertically by expansion by a factor of 3 (b) Find an equation for g (a ) in terms of the function f (ac). For example, g(a) = 10f(9x + 8) + 7. g(x) = help (formulas) 5 y = g(x) A y = f(x) -6 -5 -4 -3 -2 1 1/2 3 4 5 6 -6 -5 -4 -3 -2 2 3 5 6 Graph of y = f (a") Graph of y = g(x)