Question

i think its B am i right?! help fasttttttttt

Answer 1

2x - 3y = 6 (turn to y = mx + b form to find slope(m)
-3y = -2x + 6
y = 2/3x - 2
slope here is 2/3
perpendicular line has negative reciprocal slope...all that means is flip the slope and change the sign. So our slope we need is -3/2 (see how I flipped the slope and changed the sign.

now we use y = mx + b, and since we know slope(m), we need to find b(the y intercept)
y = mx + b
slope(m) = -3/2
(-2,-3)...x = -2 and y = -3
now we sub
-3 = -3/2(-2) + b
-3 = 3 + b
-3 - 3 = b
-6 = b

so your perpendicular equation is : y = -3/2x - 6

any questions ?

Answer 2

omg i get it i thought it would be harder thanks so much!! :D can u help me with 2 more different questions plz? :) i dont get them :(

Answer 3

I can try

Answer 4

as long as it is not geometry...I am not real good with that

Answer 5

yay :) ok hold on :)

Answer 6

perpendicular lines will have negative reciprocal slopes. And remember, that in y = mx + b form, the slopes is in the m position. So we have to compare the slopes. Negative reciprocal slopes are like : -2/3 ans 3/2....or 1/7 and -7/1....or 4/5 and -5/4.

so your perpendicular lines are :
y = 5x + 8 ---- slope here is 5 or 5/1
y = -1/5x + 3 --- slope here is -1/5

so these slopes, 5/1 and -1/5 are negative reciprocals, thus, perpendicular

Answer 7

do you understand ?

Answer 8

so its the 3rd one ? :)

Answer 9

yes

Answer 10

ok can u help me with 1 more ?:)

Answer 11

ask away

Answer 12

this one :)

Answer 13

y = 2x - 1
slope here is 2 or 2/1
we need to find negative reciprocal slope...so we flip the slope and change the sign
our new slope is -1/2

y = mx + b
slope(m) = -1/2
(-2,-2)...x = -2 and y = -2
now sub
-2 = -1/2(-2) + b
-2 = 1 + b
-2 - 1 = b
-3 = b

perpendicular equation is : y = -1/2x - 3 (C)

Answer 14

omfg thanks i get it now :) <3

Answer 15

just remember that perpendicular lines will have negative reciprocal slopes, but parallel lines will have the same slope. Just remember that for the near future.