Review Lesson 6-4: An electrician spends $12,000 on initial costs to start a new business. He estimates his expenses at $25 per day. He expects to earn $150 per day. If his estimates are correct, after how many working days will he break even? Enter only a number.
10
2.
Review Lesson 3-6: What compound inequality represents the phrase "all real numbers that are greater than 2 and less than or equal to 7"?
10
3.
Review Lesson 6-1: Solve the system by graphing. Tell whether the system has one solution, infinitely many solutions, or no solution.
A.REI.6
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4.
Review Lesson 6-1: Solve the system by graphing on the canvas. Tell whether the system has one solution, infinitely many solutions, or no solution.
Be sure to include relevant graph detail: label axes, indicate units and scale on both axes, and use arrows to represent end behavior, as appropriate.
You may complete your work on paper or on a whiteboard and upload a clear picture of it to the canvas.
A.REI.6
10
5.
Vocabulary Review A solution is a value or values which, when substituted for a variable, make an equation true. Determine the solution of each inequality below.
Solution: m > 6
Solution: m < 6
Solution: x > 20
Solution: x < 20
x + 17 < 37
2m + 3 > 15
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6.
Use Your Vocabulary: Identify the linear inequality in two variables.
