Question

A line with a slope of 8 passes through the points (5,1) and (4,h). What is the value of h?

Answer 1

The slope formula is y2-y1/x2-x1
x1 - 5
x2 - 4
y1 - 1
y2 - h

plug values into formula
(h-1)/(4-5)=8
(h-1)/-1=8

in order to get h by itself, multiply both sides by -1, and then add 1

h-1=-8
h=-7