Question

What are the intercepts for horizontal and vertical line graphs?

Answer 1

`color(blue)("Horizontal line " x = a`

`color(purple)("Vertical line " y = b`

Explanation:

Refer table above.

`"Equation of a line in" color(red)("Intercept Form") "is given by"`

`x / a + y / b = 1, " where a in x-intercept and b the y-intercept"`

For a horizontal line, y = 0 or y/b = 0 and the equation becomes,

`x / a = 1 " or " x = a`

Similarly, for a vertical line, x = 0 or x / a = 0 and the equation becomes,

`y / b = 1 " or " y = b`