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What is the equation of that line that passes through the centre of the circle 2x2 plus 2y2 -8x -5y -1 equals 0 and is perpendicular to the line 4x plus 9y plus 5 equals 0?
Centre of circle: (2, 1.25) Slope of line: 9/4 Equation of line: y-1.25 = 9/4(x-2) => 4y-5 = 9x-18 => 4y = 9x-13
4x2 - 8x plus 3 equals 0?
1/2 , 3/2
What is the solution of this system 3x plus 4y equals 5 x-4y equals 7?
Add the two equations and get 4x = 12 so x = 3 and y = -1
8x plus 10 equals 4x plus 14?
8x + 10 = 3x +145x = 4x = 4/5 = 0.8Improved answer:8x+10 = 4x+148x-4x = 14-104x = 4x = 1
7 plus 8x-5 equals 8x plus 7-5x?
7+8x-5 = 8x+7-5x Subtract 7 from both sides: 8x-5 = 8x-5x Subtract 8x from both sides: -5 = -5x Divide both sides by -5: x = 1 So the equation implies x = 1
What is the equation for -4x plus 4y equals plus 1?
-4x + 4y = 1
What is the point of contact between the line y equals x plus 4 and the circle x2 plus y2 -8x plus 4y equals 30?
Equations: y = x+4 and x^2 +y^2 -8x +4y = 30 It appears that the given line is a tangent line to the given circle and the point of contact works out as (-1, 3)
Do the equations x equals 4y plus 1 and x equals 4y -1 have the same solution?
No.
Do the equations X equals 4y plus 1 and X equals 4y-1 have the same solution?
x=4y+1 x=4y-1 No,they have different solutions.
-8x plus 3y equals -5 8x - 2y equals 6?
(1, 1)
3x plus 4y equals 7 2x plus y equals 3?
(1, 1)
Do the equations x equals 4y plus 1 and x eqauls 4y minus 1 have the same solution?
No.
3x plus 2y equals 7 2x plus 4y equals 18?
(-1, 5)
3x plus 2y equals 7 and 2x plus 4y equals 18?
(-1, 5)
3x plus 2y equals 4 -3x plus 4y equals -10?
(2, -1)
How do you solve this linear system 8x-4y equals 3 and 5x plus 2y equals 3?
8x = 4y + 3 x = 0,5y + 3/8We fill this out in the second formula:5(0,5y + 3/8) +2y = 34,5y = 3 - 15/8y = 2/3 - 15/36 = 24/36 - 15/36 = 9/36 = 1/4X = 1/8 *1+3 = 1/2
What is 8x plus 7 equals 7x plus 8?
x=1
