True or False: A solution to a system of inequalities will be outside of the shaded area.
False
y = x + 4
y = 2x + 5
r + s = -6
r - s = -10
x = 4y
2x + 3y = 22
True or False: 'Greater than or equal to' will result in a solid line.
True
y = 3x - 2
y = -x - 2
8a + 5b = 9
2a - 5b = -4
y = x - 2
3x - y = 16
Sarah's pet store never has more than a combined total of 16 cats and dogs. She also never has more than 9 cats. Write a system of inequalities to show the possible number of cats and dogs in her store.
x + y ≤ 16
x ≤ 9
y = -3
x = 5
2x + 3y = 6
3x + 5y = 15
y = 3x - 1
7x + 2y = 37
Is (4, 1) a solution to the system of inequalities below?
y < 2x + 5
2x - y ≤ 3
Nope!
y = (1/3)x - 3
2x - y = 8
2a - 4b = 12
-8a + 16b = -48
3s - 2t = 4
t = 2s - 1
Mary knits scarves and sweaters to sell. Scarves take two hours to knit and sweaters take ten hours. Mary would like to spend no more than forty hours per week knitting and knit at least five items per week. Write a system of inequalities for this situation.
2x + 10y ≤ 40
x + y ≥ 5
The solution to the system of equations:
y - 3x = 3
y = 3x - 2
What is no solution?
(1/3)x + (1/4)y = 10
(1/3)x - (1/2)y = 4
The solution to the system
t + u = 12
t = (1/3)u
What is (3, 9)?