Question

Find the slope of the given points (3, 4) and (7,-4).
A)-1/2
B) 2
C) -2
D) 0

Answer 1

Answer:

-2

Step-by-step explanation:

$y = kx + n$

When you insert the given points you get

$3k + n = 4$

$7k + n = - 4$

Than you multiply the first one by - 1 and sum it with the second to get rid of n

$4k = - 8 \\ k = - 2$