Answer:
A
Explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
y - 8 = 3(x - 10) is in this form
with slope m = 3
Given a line with slope m then the slope of a line perpendicular to it is
= -
= -

the line passes through (a, b) = (- 2, 7), hence
y - 7 = -
(x - (- 2)), that is
y - 7 = -
(x + 2) → A