Question

59. The equation of straight line which is passing through
2,-3) and parallel to y-axis is?
(a) x + 2 = 0
(b) y +3 = 0
(c) x-2=0
(d) y-3=0​

Answer 1

Answer:

(b)

Step-by-step explanation:

The equation is parallel to y-axis and is a straight line.

• The equation is in $y=a$ form.

$(x,y)=(2,-3)$

$y=-3$

∴$a=-3$

∴(b) $y+3=0$

Answer 2

The line is parallel to y-axis i.e, it's perpendicular to x-axis therefore it's slope is ∞ i.e., m=∞

$\frac{y - y1}{x - x1} = m \\ \frac{y - ( - 3)}{x - 2} = \frac{1}{0} \\ \\ therefore. \: x - 2 = 0$

Thus, option C.