If the coordinates of the two points are P (–7, 5) and Q (–6, 9), then (abscissa of P) – (abscissa of Q) is
A. –3
B. 1
C. –2
D. –1
Answer:D
If the coordinates of the two points are P (–7, 5) and Q (–6, 9), then (abscissa of P) – (abscissa of Q) is
A. –3 B. 1 C. –2 D. –1