Answer:
4 out of 15
Step-by-step explanation:
If you know two points on a line you can solve for slope, m (some people say rise over run, or change in y over change in x). In the attached picture, it's the top equation in blue.
Then you can plug that into the point-slope formula (middle equation, in red), which if needed can be algebraically changed to look like the slope-intercept formula (third equation, in yellow).
But to answer your question, use the point-slope formula.
Answer:
View graph
Step-by-step explanation:
Be: p(-3,-1) q(-1,-7) r(3,3)
we must find the value of the middle point a and b
remember that distance between two points is:
pq=distance between p and q
qr =distance between q and r
ab is parallel to pr if slope ab is equal to slope pr
finally distance ab is equal to distance pr/2