Using function notation, write the formula for the function g ( x ) whose graph is obtained by horizontally stretching the graph of f ( x ) by a factor of 5.

Answer 1

f(x) stretched horizontally by factor of 5 is same as compressed vertically by factor of 1/5

g(x) = (1/5)f(x) = (f(x))/5 = .2f(x)