Xavier is running a fundraiser for the Make-A-Wish Foundation. He is selling each cup of hot chocolate for $2.50 and each doughnut costs $3.75. He wants to sell at most 35 cups of hot chocolate. His end goal is more than $220. Write a system of linear inequalities to model the scenario and identify two possible solutions.

The answer C. The slope is negative! See how if you start from the left top side the line is slanting down? That means the the slope is decreasing onwards to infinity. If it was positive (it’s not!) it would start from the right bottom side and go upwards.

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