Answer:
k = 2
Step-by-step explanation:
Fill in the given point values and solve for k.
y = (1/2)x + k
1 = (1/2)(-2) +k . . . . . . for x = -2, y = 1
1 = -1 +k . . . . simplify; next, add 1
2 = k
Each shirt is bought for eight dollars and sold for twelve, so there is four dollars profit per shirt. The twenty dollar constant, however, needs to be covered by the profit.
The inequality is
100>=4x-20
120>=4x
30>=x
The club needs to sell at least 30 shirts to make a profit of at least $100
