Question

Which of the following is the equation of a line perpendicular to
6y = 3x + 5 that passes through (-2, 1)?

Answer 1

can you find the slope of 6y = 3x + 5 ?

Answer 2

yeah, y = 1/2x + 5/6

Answer 3

So your slope is???

Answer 4

oh sorry 1/2

Answer 5

so what is the slope of the perpendicular line?

Answer 6

-2

Answer 7

now what's the equation if it passes through your points?

Answer 8

y= (slope)x + x-intercept

Answer 9

how would you find your x intercept?

Answer 10

wait is it y= -2x - 6

Answer 11

nopes,
you put the point (-2,1) in y=-2x+c
and find the value of c, put x=-2,y=1
c=....?

Answer 12

c= -3

Answer 13

bingo, what's your equation now?

Answer 14

y = -2x - 3?

Answer 15

yes, thats correct.

Answer 16

thanks for helping me out. :)

Answer 17

welcome ^_^