Line a passes through points (6, 10) and (1, 1). Line b is perpendicular to a. What is the slope of line b?

-5/9

Step-by-step explanation:

Slope of line a is,

m = (1-10) / (1-6)

= (-9) / (-5)

= 9/5

Slope of line b is -1/m

-1/m = -1 / (9/5) = -5/9

Slope of line b: -5/9

Step-by-step explanation:

(6,10) and (1,1)

m = (10-1)/(6-1)

m = 9/5

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation: