Help with this .. will mark brainliest

b) x = -9

a) gives you a diagonal line when you graph it

b) gives you a vertical line since you only have the x-value, and it passes through the point (-9,10) when you graph it

c) gives you a horizontal line when you graph it since you only have the y-value

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.