help! attachment below.

Question

anonymous · Answer

Use the slope formula $$\frac{ y2-y1 }{ x2-x1 }$$ for each points and the one you get -5/3 is the answer

sammietaygreen · Answer

What do you put in for the formula? I really don't understand it at all!

sammietaygreen · Answer

For instance, how do you actually solve the problem with the formula? @Faris_Waleed

anonymous · Answer

you just need to try each pair of points in your answers... only one will give you -5/3

The way you plug the points in is use the y coordinate from one point as y2, and the y coordinate from the other point as y1.  Same for the x terms...

anonymous · Answer

(12,13) (17,10)
(x1,y1) (x2,y2)

10-13/17-12

m= -3/5

The first answer is wrong

anonymous · Answer

(16,15) (17,10)

10-15/17-16

m=-5

The second one is wrong

anonymous · Answer

(0,7) (3,10)

10-7/3-0

m=1

The third one is wrong

anonymous · Answer

SO the last one is the correct answer

sammietaygreen · Answer

Oh! thank you! I get everything besides what you do for the subtracting part, for instance, where do you get 10-7

anonymous · Answer

y2-y1/x2-x1

10 is y2 and 7 is y1

sammietaygreen · Answer

thank you!