Suppose that f(x)=8x+1. complete parts (a) through (f).
(a) what is the slope?
(b) what is the y-intercept?
(c) what is the zero of f?
(d) solve f(x)=9. what point is on the graph of f? the solution to f(x)=9 is (type an ordered pair)
the corresponding point on the graph is (type an ordered pair)
(e) solve f(x)≤-7. the solution is (type your answer in interval notation)
(f) graph f.