Question

Find the slope of the line passing through the points (–1, 3) and (4, –7)

Answer 1

are you familiar with the formula y2-y1/x2-x1?

Answer 2

yes but i though y2 - y1 means y1 hade to be negative?

Answer 3

y1 does not have to be negative.....all it is saying is subtract y1 from y2

Answer 4

3-(-7)
-1-4
10/-5
2/-1

Answer 5

so the answer would be 2/-1?

Answer 6

slope(m) = (y2 - y1) / (x2 - x1)
(-1,3) x1 = -1 and y1 = 3
(4,-7) x2 = 4 and y2 = -7)
now we sub..
slope(m) = (-7 - 3) / (4 - (-1)
can you take it from here ?

Answer 7

i think i can give me a sec

Answer 8

-10/5 right?

Answer 9

reduces to what ?

Answer 10

-10/5 reduces to what ?

Answer 11

i dont know

Answer 12

do you know how to reduce fractions ?

Answer 13

That basically what i got

Answer 14

-10/5 reduces to -2/1 or just -2

Answer 15

Sammy also got -2

Answer 16

do you understand manguitar ?

Answer 17

You could also try http://www.wolframalpha.com/ that might help

Answer 18

i get it now thanks! to you all

Answer 19

YW :)