If the points P, Q and R are collinear, then a slope of line PQ and a slope of line QR are equal.
The formula of a slope:

PQ → (0, 3), (2, 0).
Substitute:

QR → (2, 0), (4, -3).
Substitute:

CORRECT :)
<h3>Answer: m = -1.5.</h3>
Answer:
What??
Step-by-step explanation:
Answer: 15:25
Step-by-step explanation: the number of people is 15 and the area would be 25
13 packs a year. 6.50 (.50 comes from 1/2) since the question states that she uses 6_1/2 packs of pencils in the first “1/2” of the year we need to multiply the 6_1/2 by 2 and we get our answer.