1honey
write an equation of the line containing the given point and parallel to the given line. (-5,3); 9x=2y+3
Delete
Share
This Question is Closed
btm2011
Best Response
You've already chosen the best response.
0
parallel lines have same slope so y=mx+b then use point and slope to find b
btm2011
Best Response
You've already chosen the best response.
0
9x-3=2y
y=9/2 x - 3/2 so slope is 9/2
btm2011
Best Response
You've already chosen the best response.
0
plug in 9/2 and -5 for x and 3 for y and solve for b
btm2011
Best Response
You've already chosen the best response.
0
are you following me
1honey
Best Response
You've already chosen the best response.
0
yes
1honey
Best Response
You've already chosen the best response.
0
after i plug it in than what is next
btm2011
Best Response
You've already chosen the best response.
0
what did you get for b
btm2011
Best Response
You've already chosen the best response.
0
b=51/2 so 3=-45/2 + b add -45/2 to both sides and change 3 to 6/2 so you can add 45/2
y=9/2 x +51/2
1honey
Best Response
You've already chosen the best response.
0
thank you
btm2011
Best Response
You've already chosen the best response.
0
welcome...fan me
1honey
Best Response
You've already chosen the best response.
0
I'm new to the site how do I do that
btm2011
Best Response
You've already chosen the best response.
0
click "Become a fan" in blue beside my name
btm2011
Best Response
You've already chosen the best response.
0
I'm new too so welcome
btm2011
Best Response
You've already chosen the best response.
0
do you have any more questions
1honey
Best Response
You've already chosen the best response.
0
yes
1honey
Best Response
You've already chosen the best response.
0
(7,9); 2x+y=3
btm2011
Best Response
You've already chosen the best response.
0
checking to see if it is a solution?
btm2011
Best Response
You've already chosen the best response.
0
2(7) + 9 = 3
14+ 9 = 3 NOOOO so not a solution
1honey
Best Response
You've already chosen the best response.
0
write an equation of the line containing the given point and parallel to the given line
(5,-5); 4x+3y=7
btm2011
Best Response
You've already chosen the best response.
0
transform to y=mx+b by subtracting 4x from bot h sides then divide both sides by 3 to get y =
btm2011
Best Response
You've already chosen the best response.
0
do that first and tell me what you get
1honey
Best Response
You've already chosen the best response.
0
ok
1honey
Best Response
You've already chosen the best response.
0
would it b 12
btm2011
Best Response
You've already chosen the best response.
0
y=-4/3x + 7/3 now plug in (-5,5) and slope = -4/3 into y=mx+b and solve for b
btm2011
Best Response
You've already chosen the best response.
0
(5, -5) sorry
btm2011
Best Response
You've already chosen the best response.
0
-5=-4/3(5) + b
btm2011
Best Response
You've already chosen the best response.
0
(5, -5) sorry
btm2011
Best Response
You've already chosen the best response.
0
-5=(-4/3)(5)+b
btm2011
Best Response
You've already chosen the best response.
0
-5=-20/3 +b add 20/3 so 5 which is 15/3+20/3=35/3
btm2011
Best Response
You've already chosen the best response.
0
-15/3 + 20/3 = 5/3
btm2011
Best Response
You've already chosen the best response.
0
b=5/3 same slope of -4/3 so y=-4/3x +5/3
btm2011
Best Response
You've already chosen the best response.
0
got it
1honey
Best Response
You've already chosen the best response.
0
no
btm2011
Best Response
You've already chosen the best response.
0
what is wrong
btm2011
Best Response
You've already chosen the best response.
0
do you need me to put it all together in one post
1honey
Best Response
You've already chosen the best response.
0
please
btm2011
Best Response
You've already chosen the best response.
0
4x+3y=7 solve for y
-4x -4x
3y=7-4x or 3y=-4x+7
----------
3
y=-4/3 x + 7/3 so slope is -4/3 parallel lines have same slope so use
m=-4/3 and (5, -5) and plug into slope-intercept form to find "b"-y intercept
y=mx+b
-5=-4/3(5)+b
-5=-20/3 + b
+20/3 +20/3
-15/3 + 20/3 = b
5/3= b
so y=-4/3x + 5/3
btm2011
Best Response
You've already chosen the best response.
0
got it now?