Question

Write linear equation using the points (5,19) and (9,23)

Answer 1

find slope
slope between (x1,y1) and (x2,y2) is (y2-y1)/(x2-x1)
given (
(5,19) and (9,23)
slope=(23-19)/(9-5)=4/4=1

slope=1

equation with point (x1,y1) and slope is m is
y-y1=m(x-x1)
given
(5,19)
y-19=1(x-5)
y-19=x-5
y=x+14