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Mathematics 21 Online
OpenStudy (anonymous):

HELP ME NOW AND I WILL GIVE U MEDAL AND FAN!!! A system of linear inequalities is shown below. x - y > 3 and y + x ≤ 2 Describe the steps to graph the solution set to the system of inequalities.

OpenStudy (amorfide):

x - y > 3 x-3>y substitute values of x x=0 x=1 x=2 then shade the parts of the graph which is greater than those output values

OpenStudy (anonymous):

can you help me on another one?

OpenStudy (amorfide):

sure

OpenStudy (anonymous):

Part A: Explain why the x-coordinates of the points where the graphs of the equations y = 8x and y = 2x + 2 intersect are the solutions of the equation 8x = 2x + 2. Part B Make tables to find the solution to 8x = 2x + 2. Take the integer values of x between -3 and 3. Part C: How can you solve the equation 8x = 2x + 2 graphically?

OpenStudy (amorfide):

Part A y=8x y=2x+2 these both tell you what Y is, so we can make them equal to each other 8x=2x+2 is when they intersect. Part b, just write a table with rows x input, x output Part c, draw them on a graph by substituting in values of x, and find where they cross (intersect)

OpenStudy (anonymous):

Thank you so much!!!

OpenStudy (anonymous):

I need help on Part B and Part C

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