Question

I need a urgent answer and explanation to this question​

Answer 1

7)
`y = - (5)/(3)x`

8)
`y = (1)/(2)(3x - 1)`

Explanation:

7) The equation of the straight line passing through the ordered pair (-3,5) and (3,-5) is given by

`(y - 5)/(5 - (- 5)) = (x - (- 3))/(- 3 - 3)`

⇒ -3(y - 5) = 5(x + 3)

⇒ -3y + 15 = 5x + 15

⇒ 5x + 3y = 0

⇒
`y = - (5)/(3)x` (Answer)

8) The equation of the straight line passing through the ordered pair (5,7) and (11,16) is given by

`(y - 7)/(7 - 16) = (x - 5)/(5 - 11)`

⇒ 2(y - 7) = 3(x - 5)

⇒ 2y - 14 = 3x - 15

⇒ 3x - 2y - 1 = 0

⇒
`y = (1)/(2)(3x - 1)` (Answer)