Systems of Equations
-x+y= 2
2x-y= -3
It is (-1,1) (x,y) a soultion?
Yes (-1, 1) is a solution
30-y = 2y
10=y
h(x)= √x+4
square root up 4
5x³-10x²+3x-6
(5x²+3) (x-2)
5x+3y= -1
x-y= 1
it is (-2,3) (x,y) a solution?
No, (-2,3) is not a solution
x+y= 8
x-y=6
(x, y) (7, 1)
h(x)= x² +1
quadratic up 1
(x-11) (x-10) =
x² -21x+110
x+y= -1
y= x+5
(-3,2)
parallel to y=3x- 4 through (1,5)
y=3x+2
y= x²+2x+1
x= -1
(2x+13) (3x+9) =
6x² +57x+117
2x+3y=15
x-3y=3
(6, 1)
perpendicular to y 3y= x-6 through (2, -5)
y= -3x+1
y= -x²+2x+1
x= 1
(3n+2) (n+3) =
3n² +11+6
2x+y= 7
x-2y= 6
(4, -1)
through (2, -8) (x1, y1) and (4, -3) (x2, y2)
y= 5/2x -13
y= x²+4x+1
x= -2
(n-1) (2n-2)
2n² -4n+2