## samalami Group Title Pre Calc: Write an equation of the line perpendicular to the graph of x = 3 and passing through D(4, –1). one year ago one year ago

1. satellite73 Group Title

$$x=3$$ is vertical, so your line is horizontal horizontal line looks like $$y=\text{some number}$$ in your case that number is $$-1$$

2. samalami Group Title

@satellite73 okay, how do I find a slope of x=3 to right a perpendicular equation?

3. saifoo.khan Group Title

The slope of a line like"---" is zero. The slope of a line like" | " is undefined.

4. samalami Group Title

@saifoo.khan thanks a bunch <3

5. saifoo.khan Group Title

You welcome. @samalami