Line AB contains points A (-2, 6) and B (4, 5). The slope of line AB is (5 points)
Select one:
a. -6
b.-1/6
c.1/6
d.6

Question

Line AB contains points A (-2, 6) and B (4, 5). The slope of line AB is (5 points)
Select one:
a. -6  
b.-1/6 
c.1/6 
d.6

anonymous · Answer

@ganeshie8

ganeshie8 · Answer

use slope formula

ganeshie8 · Answer

http://www.algebra-class.com/image-files/slope-formula-2.gif

anonymous · Answer

its either a or b

anonymous · Answer

@eliassaab

anonymous · Answer

@ganeshie8

ganeshie8 · Answer

you're right. show me ur work, il give u answer i promise :)

anonymous · Answer

when i have these types of problems and i have to use the slope formula and i see a negative on one of the numbers i always cancel out the positive answers

ganeshie8 · Answer

thats indeed a clever trick :)
you have the formula, so why not use the formula... take the royal path?

anonymous · Answer

i know -6 though i think

ganeshie8 · Answer

A (-2, 6) and B (4, 5)
          ^                ^


$y_2 - y_1 =    5-6 = -1$

ganeshie8 · Answer

A (-2, 6) and B (4, 5)
      ^                ^


$x_2 - x_1 =    4--2 = 6$

anonymous · Answer

so b right

ganeshie8 · Answer

slope =   $\dfrac{y_2-y_1}{x_2-x1} = ?   $

ganeshie8 · Answer

Yup, b is right !

ganeshie8 · Answer

slope =  $  \dfrac{y_2-y_1}{x_2-x1} =  \dfrac{-1}{6}$