Question

Find the missing value so
that the two points have a
slope of 1/7
(7,2) and (0,y)

Answer 1

y = 1

Explanation:

Calculate the slope m using the slope formula and equate to
`(1)/(7)`

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (7, 2) and (x₂, y₂ ) = (0, y)

m =
`(y-2)/(0-7)`, that is

`(y-2)/(-7)` =
`(1)/(7)` ( cross- multiply )

7(y - 2) = - 7 ( divide both sides by 7 )

y - 2 = - 1 ( add 2 to both sides )

y = 1