PLZ SHOW THE STEPS
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x+2y=6
2y=6-x
y=-x/2+3
m=-1/2
Point slope form: y-y1=m(x-x1)
Plug it in.
y+6=-1/2(x-1)
Distribute and simplify.
y+6=-x/2+1/2
y=-x/2-11/2
So the answer is -x/2-11/2.
2y=6-x
y=-x/2+3
m=-1/2
Point slope form: y-y1=m(x-x1)
Plug it in.
y+6=-1/2(x-1)
Distribute and simplify.
y+6=-x/2+1/2
y=-x/2-11/2
So the answer is -x/2-11/2.
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If you have learned how to take the derivative, this way could be useful. : )
*Note: When asked to find the equation of a line that is parallel to another line, you must remember that both of the lines slopes (m) will be the same. ---> m1 = m2 ---> Slope Line 1 = Slope Line 2
Now the actual work.
1) Solve for y
---> x + 2y = 6
---> y = (6 - x) / 2
---> y = 3 - (x / 2)
2) Find the slope by taking the derivative of y
---> y' = ( 3 - (x / 2) )'
---> y' = - ( ( x )' * ( 2 ) - ( x ) * ( 2 )' ) / ( 2 )^2
---> y' = - ( ( 1 )*( 2 ) - ( x )*( 0 ) ) / ( 4 )
---> y' = - 2 / 4 ------> - 1 / 2
3) Now finally use the y - y1 = m * ( x - x1 ) ---> Point-Slope Form
Plug in your points to their " x,y " variables
---> y = ( -6 ) - ( 1 / 2 ) * ( x - 1 )
---> y = -6 - ( 1 / 2 )x + ( 1 / 2 )
---> y = - ( 1 / 2 )x - ( 11 / 2 )
*Note: When asked to find the equation of a line that is parallel to another line, you must remember that both of the lines slopes (m) will be the same. ---> m1 = m2 ---> Slope Line 1 = Slope Line 2
Now the actual work.
1) Solve for y
---> x + 2y = 6
---> y = (6 - x) / 2
---> y = 3 - (x / 2)
2) Find the slope by taking the derivative of y
---> y' = ( 3 - (x / 2) )'
---> y' = - ( ( x )' * ( 2 ) - ( x ) * ( 2 )' ) / ( 2 )^2
---> y' = - ( ( 1 )*( 2 ) - ( x )*( 0 ) ) / ( 4 )
---> y' = - 2 / 4 ------> - 1 / 2
3) Now finally use the y - y1 = m * ( x - x1 ) ---> Point-Slope Form
Plug in your points to their " x,y " variables
---> y = ( -6 ) - ( 1 / 2 ) * ( x - 1 )
---> y = -6 - ( 1 / 2 )x + ( 1 / 2 )
---> y = - ( 1 / 2 )x - ( 11 / 2 )
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find the slope of x+2y=6
y= -1/2x + 3
-1/2 is the slope that you need with the point (1,-6)
point-slope form:
y+6=-1/2(x-1)
y+6=-1/2x + 1/2
-6 -6
y = -1/2x - 5 1/2
Answer:
y = -1/2x - 5 1/2
y= -1/2x + 3
-1/2 is the slope that you need with the point (1,-6)
point-slope form:
y+6=-1/2(x-1)
y+6=-1/2x + 1/2
-6 -6
y = -1/2x - 5 1/2
Answer:
y = -1/2x - 5 1/2
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2y=6-x
Y=3-1/2x
-6=-1/2*1+b
B. -51/2
Y=-1/2x-51/2
Y=3-1/2x
-6=-1/2*1+b
B. -51/2
Y=-1/2x-51/2