2012
Mathematics
JAMB
The gradient of the straight line joining the points P(5, -7) and Q(-2, -3) is
A.
1/2
B.
2/5
C.
-4/7
D.
-2/3
Correct Answer: -4/7
Explanation
PQ = y1 − y0/(x1 − x0) = −3−(−7)/−2−5 = −3 + 7/−2−5 = 4/−7
PQ = y1 − y0/(x1 − x0) = −3−(−7)/−2−5 = −3 + 7/−2−5 = 4/−7THIS WEEK's
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