Two functions are given below. F(x)= 4x + 5 and g(x)= 7x + 7. How does the graph of f compare with the graph of g?'

a. the graph of f is steeper than the graph of g
b. the graph of f is parallel to the graph of g
c. the graph of f is less steep than the graph of g.
d. the graph of f has the same y-intercept as the graph of g.