Real World System of Equations on Graph

Create a standard form equation by starting with Ax + By = C. Make sure to look at what x and y represent in this real-world problem. Plug in the numbers that represent x and y into the A and B. Also, the inequality symbol will come from the keyword DOES NOT WANT TO SPEND MORE THAN.

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AI.9.2.H

GRAPH each set of answer choices and check which answer choice creates the given graph. To graph more than one equation on a graph sheet press TAB on your calculator. Make sure to verify your answer by checking where the LINES INTERSECT.

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AI.9.2.I

To create an equation from a table use LISTS & SPREADSHEET, DATA & STATISTICS, MENU 4, 6, 1.

To create an equation from a graph choose two points and use LISTS & SPREADSHEET, DATA & STATISTICS, MENU 4, 6, 1. Or, you can also create the equation by using SLOPE-INTERCEPT FORM y = mx + b. Find the slope from RISE/RUN and the Y-INTERCEPT by checking where it crosses the y-axis.

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AI.9.2.I

Since they are asking you to create a system of equations, it helps to separate the problem into two equations that focus on WHAT they are talking about and THE COST of what they are talking about. Make sure the numbers make sense with the variables and the total. Call me for help if you don't understand.

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AI.9.2.I

Remember the rules for graphing inequalities:

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AI.9.3.D

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AI.9.3.D

You can GRAPH STANDARD FORM equations by typing them like this: Press TAB to add a second equation. Then check which answer choice matches the one on your calculator. Make sure to verify by checking the point where they cross (intersection) by using MENU, ANALYZE GRAPH, INTERSECTION.

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AI.9.3.F

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AI.9.3.F

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AI.9.5.C

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AI.9.5.C