How do you solve this math problem? What are the steps? help please?

Find y if the line through (4, 2) and (5, y) has a slope of 6.

How do you solve this?

y - 2 = 6(x - 4)
y - 2 = 6x - 24
y = 6x - 22
Substitute 5 for x and solve for y.
y = 6(5) - 22 = 8

(y₂−y₁)/(x₂−x₁) = 6
(y−2)/(5−4) = 6
(y−2)/1 = 6
y − 2 = 6
y = 8

(y-2)/(5-4)=6
(y-2)/1=6
y-2=6
y=8

calculate the slope:

...........2 - y
m = ----------- = 6
...........4 - 5

...........2 - y
m = ----------- = 6...........Now cross multiply
.............-1

2-y = -6..........................Now solve for y
y = 8...............................ANS