Alan says that two lines in the coordinate plane are perpendicular if and only if the slopes of the lines are m and 1
m
. Identify and correct two errors in Alan's statement.

First, Alan should have said two
(select)
lines rather than two lines because
(select)
lines have undefined slope. Secondly, he should have had a
(select)
sign on one of his expressions for the slope because the slopes of perpendicular lines have a product of
.

Excerpt from the rainbow, chapter x (excerpt) d. h. lawrence then there was an outcry. mrs. brangwen would not have it; no, she would not. all her innate dignity and standoffishness rose up. then there was the vicar lecturing the school. "it was a sad thing that the boys of cossethay could not behave more like gentlemen to the girls of cossethay. indeed, what kind of boy was it that should set upon a girl, and kick her, and beat her, and tear her pinafore? that boy deserved severe castigation, and the name of coward, for no boy who was not a coward—etc., etc." from the textual evidence provided in this paragraph, what conclusions can the reader draw regarding the vicar? a) he favors boys over girls. b) he has no strong feelings. c) he supports mrs. brangwen's perspective entirely. d) he tends to be indulgent towards children's misbehavior.