Find the slope of the lines:
(a) Passing through the points `(3, -2)`and `( -1,4)`,
(b) Passing through the points `(3, -2)`and `(7, -2)`,
(c) Passing through the points `(3,-2)`and `(3,4)`,
(d) Making inclination of `60^@`with the positive direction of x-axis.

Explanation

(i)We know that slope between two points `(x_1,y_1)` and `(x_2,y_2)`


`m=(y_2-y_1)/(x_2-x_1)`


Here, `x_1=-3,y_1=-2 "and" x_2=-1, y_2=4`


`:. "slope"=(4-(-2))/(-1-3)`


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