If the slope of a line 1 is , what is the slope of line 2 which is perpendicular to line 1.

Step-by-step explanation:

let's say that x is the slope of line 1.

the slope of a perpindicular line is the negative reciprical of x

the slope of line 2 is then -1/x

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c