how to solve the y-intercept in 2x-y=4?
359675
y-intercept occurs when x=0\n\nSo, set x=0, and your equation becomes:\n    2(0) - y = 4\n\nor, because 2*0 = 0,\n    \n    y = -4 is your y-intercept.\n\nThe slope can be found by writing the equation in standard "y = mx + b" form, where "m" is the slope. In your example, that would be:\n\n    y = 2x - 4\n\nSo, the slope ("m") is 2.\n\nDone and done.
715249
2x - y = 7...Equation A\n\nx + 4 = 8...Equation B\n\nWe can find x in Equation B by subtracting -4 from both sides.\n\nWe get this:  \n\nx = 8 - 4\n\nx = 4\n\nNext, plug 4 into Equation A to find the value of y.\n\n2(4) - y = 7\n\n8 - y = 7\n\n-y = 7-8\n\n-y = -1\n\nYou need to divide each side of the equation by -1 to find y.\n\nDoing this we get:\n\ny = -1/-1\n\ny = 1\n\nTo check if I am correct,\n\nplug your value for x and y into BOTH original equations to see if BOTH SIDES of BOTH equations are equal.\n\nGuido
142395
well heres the deal, to find the intercepts you need to plug in zero for the other variable\n\ny intercept : (0,y)\nx intercept : (x,0)\n\nso plug 0 in for x as the first part states and get the y intercept\n\nthen plug zero in for y as the second part states and get the x intercept. NOTE: you will need to use the quadratic formula\n\nany questiosn e-mail me\nmatttlocke@yahoo.com
561927
Y - Y1 = M(X - X1)\n\nY - 4 = -2(x + 1)\nY - 4 = -2x - 2\n\nY = -2x + 2
112219
m = 2\nb = 4\n\nThus, your line's equation is y = 2x + 4\n\nThe x-intercept occurs where the line crosses the x-axis, which is also where y = 0. Substituting 0 for y in the above equation:\n\n0 = 2x + 4\n-4 = 2x\n-2 = x (x-intercept)
1090885
the answer would be Y=2X^2+5 because you are changing the Y intercept.
27685
You have two equasions 2x=3y and y=2x+4\nYou're going to plug one equasion into the other; plug the y= into the  first equasion because the y is already by itself.\n2x=3(2x+4) (I plugged what y equaled into the y in the first equasion.\nThen you solve for x\n2x=3(2x+4)\n2x=6x+12\n-4x=12\nx=-3\nNow that you have solved for x, plug x back into the y='s equasion\ny=2x+4\ny=2(-3)+4\ny=-6+4\ny=-2
484451
iso late the y by subtracting 6x from each side, so you are left with 2y = 9-6x, then divide each side by the coefficient of y (2) making your equation: y=9/2-3x...the y intercept of the line is 9/2 and the slope is -3 (so start at the point on the graph 9/2, then move 3 squares down, and over to the right one)
495630
your answer is incorrect.\n\nthis is the correct answer:\n\n18x+9y=27 ----->  y= -2x+3; intercept at y= 3 and x= 3/2\n\nhow do i get it?\n\nwhen intercept at y, the x value must be zero, so put 0 into x, you get y= -(2 * 0) + 3 = 3\n\nwhen intercept at x, the y value must be 0, so put 0 into y, you get 0 = -2x + 3 -----> -2x = -3 ----> 2x = 3 ----> x= 3/2\n\ni got trouble also when  i was in school but i keep on practising\n\ngood luck
610726
there is a solution, all x,y that satisfy this equation:\ny = 4 - 2x\n\nwhich is a straight line with intercepts (0,4) & (2,0)\n\nIt has an infinite amount of solutions. To be able to solve for actual numbers, you need as many equations as you have variables.
927388
y=mx+b\n\njust rearrange it so you get b as your intercept..\n\nin this case y=-1/4x +3, so the slope is -1/4, and the intercept is 3
897443
2x + y = - 9\n\n2x + y - y = - 9 - y\n\n2x = - 9 - y\n\n2x/2 = - 9/2 - y/2\n\nx = - 9/2 - y/2\n\n- - - - - - - -\n\ny values\n\n2x + y = - 9\n\n2x + y - 2x = - 9 - 2x\n\ny = - 9 - 2x\n\n- - - - - - - - - - - - -\n\n2).\n\nx values\n\n-x - y = - 8\n\n- x - y + y = - 8 + y\n\n- x = - 8 - y\n\n- 1(- x) = - 1(- 8) + (- 1)(y)\n\nx = 8 - y\n\n- - - - - - - - - - - -\n\ny values\n\n- x - y = - 8\n\n- x - y + x = - 8 + x\n\n- y = - 8 + y\n\n- 1(- y) = -1(- 8) + (- 1)(x)\n\ny = 8 - x\n\n- - - - - - - - - - - -\n\n3).\n\nx values\n\n- 3x + 4y = 2\n\n- 3x + 4y - 4y = 2 - 4y\n\n- 3x = 2 - 4y\n\n- 3x/ - 3 = 2/- 3 - 4/- 3\n\nx = - 2/3 + 4/3\n\n- - - - - - - -\n\ny values\n\n- 3x + 4y = 2\n\n- 3x + 4y + 3x = 2 + 3x\n\n4y = 2 + 3x\n\n4y/4 = 2/4 + 3x/4\n\ny = 1/2 + 3x/4\n\n- - - - - - - - - -\n\n4).\n\nx values\n\n- 2x - y = - 3\n\n- 2x - y + y = - 3 - y\n\n- 2x = - 3 - y\n\n- 2x/ -2 = - 3/- 2 - y/-2\n\nx = 3/2 + y/2\n\n- - - - - - - - - \n\ny values\n\n- 2x - y = - 3\n\n- 2x - y + 2x = - 3 + 2x\n\n- y = - 3 + 2x\n\n- 1(- y) = -1 (- 3) + (- 1) (2x)\n\ny = 3 - 2x\n\n- - - - - - - -s-
801269
The first thing that I would do is to get the equation into slope-intercept form:\n2x + 3y + 6 = 0 --- Subtract 6 from both sides...\n2x + 3y = -6 --- Subtract 2x from both sides...\n3y = -2x - 6 --- Divide both sides by 3...\ny = -(2/3)x - 2\n\nNow, since this equation is in the form y = mx + b; where m is the slope, we can easily see that the slope of this line is -(2/3).\n\nAnswer: (4) -2/3
704179
An equation in slope-intercept form is y = mx + b\nIn the equation, m = slope and b = y-intercept\n\nUsing the equation given\ny=-3/2x+6\ny = mx + b\n\nWe know that the slope is -3/2.  That would be m.\nWe know the y-intercept is 6.  That would be b.\n\nNow we have to find the x-intercept.\n\nTo get the x-intercept, we will set y = 0 and solve the equation for x.\ny=-3/2x+6\nSubstitute 0 for y\n0=-3/2x+6\nAdd 3/2x to both sides\n3/2x = 6\nMultiply both sides by 2/3\n2/3*3/2x = 6*2/3\nx = 4\nThe x-intercept is 4.\n\nSlope =  -3/2. \ny-intercept = 6.\nx-intercept = 4.
106013
y = -2x + 8\n\nsolve it yourself
679397
y = 0.5x-4 \n\nor similarly\n\nx= 2y +8
849823
set x=0 to get the y intercept and \ny=0 to get the x intercept\nin this case\nsetting x=0\ny-1=9\ny=10\nso y intercept=(0.10)\nsetting y=0\n-1=(x-3)^2\nx-3=rt(-1)\nx imaginary\nso no x intercepts