Question

I need a urgent answer and explanation to this question​

Answer 1

Answer:

7) $y = - \frac{5}{3}x$

8) $y = \frac{1}{2}(3x - 1)$

Step-by-step explanation:

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

$\frac{y - 5}{5 - (- 5)} = \frac{x - (- 3)}{- 3 - 3}$

⇒ -3(y - 5) = 5(x + 3)

⇒ -3y + 15 = 5x + 15

⇒ 5x + 3y = 0

⇒ $y = - \frac{5}{3}x$ (Answer)

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

$\frac{y - 7}{7 - 16} = \frac{x - 5}{5 - 11}$

⇒ 2(y - 7) = 3(x - 5)

⇒ 2y - 14 = 3x - 15

⇒ 3x - 2y - 1 = 0

⇒ $y = \frac{1}{2}(3x - 1)$ (Answer)