Question

Line AB contains points A (0, 1) and B (1, 5). The slope of line AB is

−4
negative 1 over 4
1 over 4
4

I'm thinking it's D. Just need confirmation. Thank you! (:

Answer 1

Answer: D

Explanation:

I just took the test and it was right

Answer 2

General equation of line is
`y=mx+n` where m is slope and n is point on y-axis. So just use points in question to determine what m and n must be. Let me show you.

For A(0,1), put this point in
`y=mx+n` then you have
`1=m.0+n` Hence
`n=1`

Now use second one that is B(1,5), then you get
`5=m.1+1` since
`n=1`. Finally you get
`m=4` that is slope.

So you are right. It is D