Question

The points (1,1) and (5,5) fall on a particular line. What is its equation in slope- intercept form

Answer 1

y = x

Explanation:

(1 , 1)

(5 , 5)

m =
`(y)/(x)`

m =
`(4)/(4)`

Answer 2

y=x

Explanation:

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

m=(5-1)/(5-1)=4/4=1

slope is 1

y-y1=m(x-x1) where m=slope

y-1=1(x-1)

y-1=x-1

y=x-1+1

y=x