Aline passes through the points (p. a) and (p, -a) where p and a are real numbers and p70. describe each of the
following. explain your reasoning.
1. slope of the line
2. equation of the line
3. y-intercept
4. slope of a line perpendicular to the given line.

Line joining points (p,a) and (p,-a)

Not sure what p70 means, p=70 maybe?

1. Slope

m = (-a - a) / (p - p)

That's a zero denominator, slope undefined.

line has no slope

2.

The equation is clearly

x = p

If p is really 70, that's

x = 70

3. Vertical lines have no y intercept.  (Except when the line is the y axis in which case every point is a y intercept!)

y intercept does not exist

4. Slope of the perpendicular

This is a vertical line so the perpendicular is horizontal, zero slope

zero

answer: 7270

step-by-step explanation: