What is the equation that represents the line passing through the point (1, -4) with a slope of 1/2.
Please help me! I am not good at math!
Please help me! I am not good at math!
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y - y1 = m(x - x1)
y - (-4) = (1/2)(x - 1)
y + 4 = (1/2)x - 1/2
y = (1/2)x - 9/2
y - (-4) = (1/2)(x - 1)
y + 4 = (1/2)x - 1/2
y = (1/2)x - 9/2
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HOPEFULLY YOU GONNA LOVE THIS (not taught in the books)
READ STUDY Then your problem
FIRST
here is How I Find The Slope when i have Ax+By+C=0....or.....Ax+By=C
Put A over B and change one (and only one) sign
5x-3y=7
m=5/(-3)...lets change sign of the -3.............m=5/3
8x+7x-99=0
m=8/7...lets change sign of 8...........m=-8/7
NOW TURN IT AROUND
slope =m = -8/7
Write...........___X......____Y..=....…
Put the numerator of the slope IN FRONT OF X and the denominator IN FRONT OF Y
Write..........-.8X.....+7y..=.....
NOW DONT FORGET TO CHANGE THE SIGN OF ONE AND ONLY ONE OF THE NUMBERS
..................lets change the .....-8 to a .....+8
Write.........+8X+7Y=......??......
To get the ..??..., substitute the X and Y values of a point the line goes thru for the X and Y in +8X+7Y=....
say the point is (3,-2)
8(3)+7(-2)=...........24-14=..........…
EQUATION.....................8X+7Y=10
Write IN standard form Ax + By = C
2.) m=-3/2, passes through (4,-7)
+3X+2Y=.........
3(4)+2(-7)=.......12-14=.......-2
ANSWER......................3X+2Y=-2
1.) m=-3, b=5
m=-3/1...........b=5...the y-intercet means the point......(0,5)
3X+1Y=....
3(0)+1(5)=.......0+5=.......5
ANSWER................3X+Y=5
Pass this on to friends and teachers..................IT'S FAST
What is the equation that represents the line passing through the point (1, -4) with a slope of 1/2.
Please help me! I am not good at math!
ME EITHER BUT DONT TELL ANYONE.....I GOT THEM ALL FOOLED
Just kidding.. I am very good... Read my closing note and contact me
X - 2Y = 9............................(1) - 2(-4) = 1 + 8 = 9
If you dont fully understand or have a question let me know
how to contact you so you can contact me directly with any math questions.
If you need me for future tutoring I am not allowed to give out my
info but what you tell me on how to contact you is up to you
Been a pleasure to serve you Please call again
Robert Jones.............f
"Teacher/Tutor of Fine Students"
READ STUDY Then your problem
FIRST
here is How I Find The Slope when i have Ax+By+C=0....or.....Ax+By=C
Put A over B and change one (and only one) sign
5x-3y=7
m=5/(-3)...lets change sign of the -3.............m=5/3
8x+7x-99=0
m=8/7...lets change sign of 8...........m=-8/7
NOW TURN IT AROUND
slope =m = -8/7
Write...........___X......____Y..=....…
Put the numerator of the slope IN FRONT OF X and the denominator IN FRONT OF Y
Write..........-.8X.....+7y..=.....
NOW DONT FORGET TO CHANGE THE SIGN OF ONE AND ONLY ONE OF THE NUMBERS
..................lets change the .....-8 to a .....+8
Write.........+8X+7Y=......??......
To get the ..??..., substitute the X and Y values of a point the line goes thru for the X and Y in +8X+7Y=....
say the point is (3,-2)
8(3)+7(-2)=...........24-14=..........…
EQUATION.....................8X+7Y=10
Write IN standard form Ax + By = C
2.) m=-3/2, passes through (4,-7)
+3X+2Y=.........
3(4)+2(-7)=.......12-14=.......-2
ANSWER......................3X+2Y=-2
1.) m=-3, b=5
m=-3/1...........b=5...the y-intercet means the point......(0,5)
3X+1Y=....
3(0)+1(5)=.......0+5=.......5
ANSWER................3X+Y=5
Pass this on to friends and teachers..................IT'S FAST
What is the equation that represents the line passing through the point (1, -4) with a slope of 1/2.
Please help me! I am not good at math!
ME EITHER BUT DONT TELL ANYONE.....I GOT THEM ALL FOOLED
Just kidding.. I am very good... Read my closing note and contact me
X - 2Y = 9............................(1) - 2(-4) = 1 + 8 = 9
If you dont fully understand or have a question let me know
how to contact you so you can contact me directly with any math questions.
If you need me for future tutoring I am not allowed to give out my
info but what you tell me on how to contact you is up to you
Been a pleasure to serve you Please call again
Robert Jones.............f
"Teacher/Tutor of Fine Students"
-
You use "point slope" form, because you have a point and the slope.
(y - y1) = m(x - x1)
where y1 is the y coordinate of the point, x1 is the x coordinate of the point, and m is the slope.
(y - (-4)) = 1/2(x - (1))
y + 4 = 1/2(x - 1)
y + 4 = 1/2x - 1/2
y = 1/2x - 1/2 - 8/2
y = 1/2x - 9/2
(y - y1) = m(x - x1)
where y1 is the y coordinate of the point, x1 is the x coordinate of the point, and m is the slope.
(y - (-4)) = 1/2(x - (1))
y + 4 = 1/2(x - 1)
y + 4 = 1/2x - 1/2
y = 1/2x - 1/2 - 8/2
y = 1/2x - 9/2