x+y=7
2x-y=2
(3,4)
FACTOR
x2+10x+24
(x+4)(x+6)
IS it a function? What's the domain and range .
{(-3,3), (-2,2), (-1,1), (0,0), (1,1), (2,2), (3,3)}
Yes .
domain - (-3,-2,-1,0,1,2,3)
range-(3,2,1,0,1,2,3)
SOLVE FOR X
g=6x
x=g/6
2x+3<7 or 4x-5>15
x<2 or x>5
3x-7y=16
5x-4y=19
(3,-1)
FACTOR
x2+8x+12
(x+2)(x+6)
Is it a function? What's the range & domain .
{(2,3), (5,4) , (0,3) , (4,1)}
yes .
Domain-{0,2,4,5}
Range-{1,3,4}
SOLVE FOR H
A=1/2bh
2A/b=h or H/2A/b
3x+1<4 and -2x+2>=8
-3<=x<1
3x+y=10
-4x-2y=2
(11,-23)
FACTOR
x2+18x+80
(x+10)(x+8)
Is it a function ? What's the domain & range .
{(3,-1) , (2,-2) , (0,2), (2,1)}
No
Domain -{0,2,3}
Range-{-2,-1,1,2}
SOLVE FOR Y
ax+by=c
y=c/b-ax/b
x-3>5 or x+3<-2
(DO NUMBER LINE)
x>8 or x<-5