Ask your own question, for FREE!
Mathematics 21 Online
OpenStudy (keeli_grace):

What is the slope of the line passing through points A and B? A. 1/2 B. -1/2 C. 2 D. -2

OpenStudy (anonymous):

What are the coordinates of A and B?

OpenStudy (keeli_grace):

OpenStudy (keeli_grace):

@emcrazy14

OpenStudy (anonymous):

Okay, I'll tell you the formula. You will plug in the values, yourself, okay? And I'll check your answer.

OpenStudy (keeli_grace):

Okay. :)

OpenStudy (anonymous):

\[slope= \frac{ y _{2}-y _{1} }{ x _{2}-x _{1} } \]

OpenStudy (anonymous):

x1 and y1 are the coordinates of one pair like e.g A. x2 and y2 are the coordinates of the other, that is, B.

OpenStudy (keeli_grace):

I don't understand. : /

OpenStudy (keeli_grace):

@emcrazy14 ? Would you please explain how I would apply said formula?

OpenStudy (anonymous):

Okay, so x-coordinate of A is -3 and y-coordinate is 4. Agreed?

OpenStudy (anonymous):

x-coordinate of B is 1 and y-coordinate is 2.

OpenStudy (anonymous):

Now plug in the formula. \[slope= \frac{ 4-2 }{ -3-1 }\]

OpenStudy (anonymous):

Did you get it now?

OpenStudy (keeli_grace):

So it would be 2/-4?

OpenStudy (anonymous):

Which would be -1/2 when simplified.

OpenStudy (keeli_grace):

OH!!!!! Thank you so much!!! :D

OpenStudy (anonymous):

yw. (:

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!