Question

The slope of a line ST = -5. What is the value of y if S = (-3,2) and T = ( - 4, y).

Y= _________

Answer 1

y = 7

Explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = S(- 3, 2) and (x₂, y₂ ) = T(- 4, y)

m =
`(y-2)/(-4+3 )` , that is

=
`(y-2)/(-1)` = - 5 ( multiply both sides by - 1 )

y - 2 = 5 ( add 2 to both sides )

y = 7