Are the points on the line?
2x = y - 7 (4, 15)
8 = 8
The rabbit population triples each year.
No
3x + y = 10
y = -3x + 10
Slope of 3. Through (2,4)
y = 3x - 2
2x = y - 7 (-1, 6)
- 2 = -1
The car's value decreased by $1000 each year.
Yes
y - 7 = x
y = x + 7
Slope of -1/2. Through (-4, 3)
y = -1/2 + 1
2x = y - 7 (-8.6, -10.2)
- 17. 2 = - 17.2
I pay $500 each month for rent.
Yes
3x + 4y = 8
y = - 3/4x + 2
(1, 7) (2, 11)
y = 4x + 3
2 (x+3) - y = 7 + x (12, 11)
19 = 19
The area of shade keeps dividing by 2.
No
-x + 7y = -21
y = 1/7x - 3
( -2, -8) (1, 7)
y = 5x + 2
2 (x+3) - y = 7 + x (1,0)
8 = 8
Sally makes $35 per hour.
Yes.
y + 13 = -3 (x - 8)
y = -3x + 11
(6, -3), (9, -2)
y = 1/3x - 5