(a) The graph of a function y = f(x) is horizontally compressed by a factor of 4. Find an equation for this compressed function in terms of the function f(z). For example, y 10f(9x+8)+7. = help (equations) (b) The graph of the function y=e+ 10 is horizontally compressed by a factor of 4. Find an equation for this compressed function. help (equations) (c) The graph of a function y = g(z) is horizontally expanded by a factor of 9. Find an equation for this expanded function in terms of the function g(z). For example, y 10g(9x+8)+7. help (equations) (d) The graph of the function y=23-22 is horizontally expanded by a factor of 9. Find an equation for this expanded function. help (equations)