What is the equation of a vertical line passing through the point (−5, −1)? y = −5 y = −1 x = −5 x = −1

The correct option is 3.

Step-by-step explanation:

It is given that a vertical line passing through the point (−5, −1).

If a vertical line passes through a point (a,b), then the equation of vertical is

       .... (1)

In the given point the value of a is -5 and the value of b is -1.

Substitute a=-5 in equation (1), to find the equation of vertical line.

The equation of a vertical line is x=-5 which passing through the point (−5, −1).

Therefore the correct option is 3.

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3