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Show that the area of the triangle form...

Show that the area of the triangle formed by the straight lines ` y = m_(1) x + c_(1) `, ` y = m_(2) x + c_(2) ` and x = 0 is `(1)/(2)(c_(1)-c_(2))^(2)/(|m_(1)-m_(2)|)` sq . Units .

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The correct Answer is:
` = ` height of `Delta PQR = PM = (1)/(2)(c_(2)-c_(1))/(|m_(2)-m_(1)|)`
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