Question

Find an equation of the line that has the point (-1, -4) and perpendicular to y=-2.

Answer 1

di you know what a perpendicular line is?

Answer 2

the line y=-2 is straight across the page; what would a perp line to it that passes thru (-1,-4) be?

Answer 3

two lines that intersect at right angles

Answer 4

good; what line is 90 degrees to the y=-2 line?

Answer 5

so, y=-2 is the line straight across and then (1,-4) goes straight through

Answer 6

x = -1 is the only perp line to y=-2; that goes thru (-1,-4)

Answer 7

right, they 'meet' at -1

Answer 8

correct...kind of :) they meet at (-1,-2)

Answer 9

OK, so they meet at (-1,-2). The equation to y=-2 would be x=-1

Answer 10

exactly :)