Question

Q1 Two points A (-2, 9) and B (4, 8) lie on a line l. (i) Find the slope of the line l. (ii) Find the coordinates of the midpoint of the points A and B (iii) Find the distance between points A and B.

Answer 1

Answer:

Slope: -1/6

Midpoint of AB: (1, 8.5)

Distance of AB: √37

Step-by-step explanation:

Slope formula: $m = \frac{y2-y1}{x2-x1}$

Midpoint formula: $(\frac{x1+x2}{2} ,\frac{y1+y2}{2} )$

Distance formula: $d = \sqrt{(x2-x1)^{2}+(y2-y1)^{2}}$