Question

Through:(1,5),slope=4

Answer 1

I assume you want an equation with that slope that goes through that point.
Recall the point slope formula y - y1 = m(x - x1)
(x1, y1) is any point on the line
m is your slope

Answer 2

use one point form.
(y-y1)=slope (x-x1)

Answer 3

Use this :
Y2-Y=m(x2-x)
m is slope = 4
Y2=5
x2=1
and x and y are in equation :)
Got it ?:)

Answer 4

ok...we've given enough help. if they don't respond...stop helping.

Answer 5

y-5=4(x-1)
y-5=4x-4
4x-y-1