Question

Which equation represents a line that is parallel to the x-axis, is perpendicular to the y-axis, and has a slope of 0?

A.

`y = (4)/(5) x + (5)/(4)`

B.

`y = (5)/(4) x`

C.

`y = (4)/(5)`

D.

`x = (5)/(4)`
​

Answer 1

C

Explanation:

The equation of a line parallel to the x- axis ( slope of 0 ) and perpendicular to the y- axis has equation

y = c

where c is the value of the y- coordinates the line passes through.

The only equation in this form is

y =
`(4)/(5)` → C