FAN AND MEDAL***
Choose the system of equations which matches the following graph:
A))x + 2y = −10 3x − y = 12 B)x − 2y = −10 3x − y = 12 C)x + 2y = −10 3x + y = 12 D) x − 2y = −10 3x + y = 12
Do you know how to solve for y in this problem? And do you have a graphing calculator?
mmm no ;/
To both questions?
yes ;/
Alright do you want me to teach you on how to get to the answer or just show steps?
teach me how to get the answer pleaseeee
Okay so it's telling me to see which answer choice has equations that are the same as the lines on the graph. So in order for me to find that I would have to graph each equation from the answer choice.
its C? ;/
Let's start with A. The equations are \[x+2y=-10\]and\[3x-y=12\]First solve for y. In order to solve for y you would have to move all of the numbers and x over to the other side of the equal's sign. For example:\[x+2y=-10\](Let's get rid of the x and move it to the other side) |dw:1438811302574:dw| Then you have to divide by 2 to get rid of the 2 next to the y. |dw:1438811397930:dw|
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