Question

An electronics store makes a profit of $32 for every portable DVD player sold and $64 for every DVD recorder sold. The manager’s target is to make at least $256 a day on sales of the portable DVD players and DVD recorders. Write and graph an inequality that represents the number of both kinds of DVD players that can be sold to reach or beat the sales target. Let p represent the number of portable DVD players and r represent the number of DVD recorders.

Answer 1

the inequality should be 32p + 64r >= 256

Simplify by dividing by 32:

p + 2r >= 8

Then solve for r, since it's on the vertical axis:

r >= -(1/2)p + 4

So the border of the inequality should be a line running at slope -1/2 and intersecting the "r" axis at 4.

Answer 2

So, would it be the 1st graph ?

Answer 3

I think it's the first one, yes...

Answer 4

thanks (;

Answer 5

hope it helped :)

Answer 6

it did (;