# Southern New Hampshire University JL Final- 8-2 Problem Set: Module Eight.pdf

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10/18/20, 2 : 35 PM Southern New Hampshire University - 8-2 Problem Set: Module Eight Page 1 of 17 [PRINT] MAT-140-X1355 20EW1 Precalculus , 8-2 Problem Set: Module Eight Jennifer Lobe, 10/18/20 at 5:06:47 PM EDT Question1: Score 4/4 Solve the system of equations by any method. Enter the exact answer as an ordered pair, ( ,)If there is no solution, enter NS. If there is an infinite number of solutions, enter the generalsolution as an ordered pair in terms of Include a multiplication sign between symbols. For example, *Your response . . . 7 . .
10/18/20, 2 : 35 PM Southern New Hampshire University - 8-2 Problem Set: Module Eight Page 2 of 17 Now, let’s add them. - 14 + 35 = - 147 14 + 4 = 30 39 = - 117 = - 3 For the last step, we substitute = - 3 into one of the original equations and solve for . - 2 + 5 = - 21 - 2 + 5( - 3) = - 21 - 2 - 15 = - 21 - 2 = - 6 = 3 Our solution is the ordered pair (3, - 3) . Check the solution in the original second equation. 7 + 2 = 15 7(3) + 2( - 3) = 15 21 - 6 = 15 True Question2: Score 4/4 Solve the system of equations by any method.
10/18/20, 2 : 35 PM Southern New Hampshire University - 8-2 Problem Set: Module Eight Page 3 of 17 Enter the exact answer as an ordered pair, ( ,)If there is no solution, enter NS. If there is an infinite number of solutions, enter the generalsolution as an ordered pair in terms of Include a multiplication sign between symbols. For example, *Your response . . . . .
10/18/20, 2 : 35 PM Southern New Hampshire University - 8-2 Problem Set: Module Eight Page 4 of 17 + 2(8) = 5 + 16 = 5 = - 11 Our solution is ( - 11, 8) . Check the solution by substituting ( - 11, 8) into both equations. 5 + 9 = 17 5( - 11) + 9(8) = 17 - 55 + 72 = 17 True + 2 = 5 ( - 11) + 2(8) = 5 - 11 + 16 = 5 True Question3: Score 4/4 Solve the system of equations by any method. - + 2 = - 1 3 - 6 = 4
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