(1, 1)
3x+4y = 4 4y = -3x+4 y = -3/4x+1 So the slope is -3/4 and the intercept is 1
3x + 4y = 12 Subtract 3x from each side 4y = 12 - 3x Divide by 4 on each side y = 3 - .75x The slope is what is multiplied by "x" or -.75
Multiply the first equation by -3
If: 3x+4y = 4 Then: y = -3/4x+1 and so the slope is -3/4 or -0.75 with a y intercept of 1
4y = 3x+11 or as y = 3/4x+11/4
(1, 1)
1
3x+4y = 4 4y = -3x+4 y = -3/4x+1 So the slope is -3/4 and the intercept is 1
3x + 4y = 12 Subtract 3x from each side 4y = 12 - 3x Divide by 4 on each side y = 3 - .75x The slope is what is multiplied by "x" or -.75
4y= -3x + 12 y = -3/4x + 3 The perpendicular slope is 4/3
Multiply the first equation by -3
x equals -3, and y equals 1.
If: 3x+4y = 4 Then: y = -3/4x+1 and so the slope is -3/4 or -0.75 with a y intercept of 1
Subtract: 3x - 3x - 4y - 2y = 30 - 6 ie -6y = 24 so y = -4 and x = 14/3
y = 3x 3x + 4y = 30 3x + 4(3x) = 30 3x + 12x = 30 15x = 30 x = 2 y = 3x y = 3(2) y = 6 (2, 6)
x = 2, y = 3