Question -
Answer -
The Slope of the line joining the points (3, -1) and (4, -2) isgiven by
m = (y2 –y1)/(x2 – x1) where, x ≠ x1
m = (-2 –(-1))/(4-3)
= (-2+1)/(4-3)
= -1/1
= -1
The angle of inclination of line joining the points (3, -1) and(4, -2) is given by
tan θ = -1
θ = (90° + 45°) = 135°
∴ Theangle between the x-axis and the line joining the points (3, –1) and (4, –2) is135°.