Find the value of f(8) to the nearest hundredth

Hello, i need compare km^2 and km. what's difference in this?

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)

The slope of cd is which segments are perpendicular to cd ? select each correct answer. gf , where g is at (6, 5)and fis at (10, 2) ef, where e is at (4, 1) and f is at (7,5) lm , where lis at (-2, 3) and m is at (-10, 9) jk , where jis at (1, -2) and k is at (10, – 14) next