Q. 3x−4y=−5y=4x−2Is (1,2) a solution of the system?Choose 1 answer:(A) Yes(B) No
Substitute and check first equation: First, we will substitute the point (1,2) into the first equation and check if it holds true. The first equation is 3x−4y=−5. If we substitute x=1 and y=2, we get 3⋅1−4⋅2=−5.
Verify first equation holds true: After performing the calculation, we find that 3−8=−5, which is true. Therefore, the point (1,2) satisfies the first equation.
Substitute and check second equation: Next, we will substitute the point (1,2) into the second equation and check if it holds true. The second equation is y=4x−2. If we substitute x=1 and y=2, we get 2=4⋅1−2.
Verify second equation holds true: After performing the calculation, we find that 2=4−2, which is also true. Therefore, the point (1,2) satisfies the second equation as well.
Solution to the system of equations: Since the point (1,2) satisfies both equations, it is a solution to the system of equations.
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