Line \(A(y=x+2)\) is transformed into Line \(B(y=3x+1)\). Which best describes the new slope and \(y\)-intercept?
The slope is [ ], and the line is shifted [ ].
flatter steeper
Answer (2)
For the first one, you just add them and you obtain an equation in y. Solve for y, then substitute y for the solution in either of the equations, then solve for x. In the second one, multiply the first by -2, then do the addition and something similar to the first one.
To solve a system of equations using the elimination method, multiply one or both equations to align coefficients, then add or subtract to eliminate one variable. Solve for the remaining variable and substitute back to find the other. For example, solving 3 x + 2 y = 16 and 2 x − 4 y = − 2 leads to x = 3.75 and y = 2.375 .
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