Question

What is the slope of the line that passes through the points (3, 8) and (12, 1)?


A.-9/7




B.-7/9




C.7/9




D.9/7


@myininaya @beccaboo333 @destinymasha
@amistre64 @hartnn @sam.

Answer 1

The slope of the line through points (x1,y1) and (x2,y2) is given by :
\(\huge m=\frac{y_1-y_2}{x_1-x_2}\)
now,just put the values and find m.

Answer 2

now im vconfused

Answer 3

x1,y1 = 3,8
x2,y2 =12,1

lets first take the difference in y co-ordinates (the numerator)
\(y_1 - y_2 = 8 -1 = ...\)

Answer 4

7

Answer 5

then what

Answer 6

yes, now denominator
\(x_1 -x_2 = 3-12 = ...?\)

Answer 7

-9?

Answer 8

correct!
so your slope
m = 7/(-9) = -7/9
:)

Answer 9

so it would be b?

Answer 10

yes!