Question

Help please, I don't get this at all

Answer 1

a)
`x+12y\leq 60`

b) Subtract x from both sides:

`12y=60-x`

Divide each side by 12 and then simplify:

`y=(60-x)/(12) = (60)/(12) - (x)/(12)=5-(x)/(12)`

c)

`6+12(4) = 54`, true

`8+12(5) = 68`, false

d) The point (6,4) represents 6 songs and 4 albums, which in total costs $54. This makes the inequality true since
`54 \leq 60`.

e) Yes, I would shade the point -3,4 since it test true in the inequality (this doesn't make sense since you can't buy -3 songs, but this is just an arbitrary point).