Question

The slope of the line passing through the point (2,-1) and (x,5) is -1 Find x ?​

Answer 1

Step-by-step explanation:

let x1 = 2, y1 = -1, x2 = x and y2 = 5

now slope m = (y2-y1)/(x2-x1)

given slope m = -1

therefore -1 = [(5-(-1)]/[(x-2)]

=> -1 = 6/x-2

=> 2-x = 6 [on cross multiplication ]

=> x = -4 [by transposing x and 6]