Question

A straight line passes through the points P (1, 2) and Q(5, 8). Use this information to answer question 24 and 25

24. Calculate the gradient of the line PQ
A ³/5
B²/3
C 3/1/₂
D 5/1/13

25. Calculate the length PQ
A 4√11
B 4√10
C 2√17
D 2√13​

Answer 1

24) m = (8 - 2)/(5 - 1) = 6/4 = 3/2

The correct answer is C.

25) PQ = √((5 - 1)² + (8 - 2)²)

= √(4² + 6²)

= √(16 + 36)

= √52 = 2√13

The correct answer is D.