Q. y′=2x+3y−1Is y=−32x+91 a solution to the above equation?Choose 1 answer:(A) Yes(B) No
Given Differential Equation: Given the differential equation y′=2x+3y−1, we need to check if the function y=−32x+91 is a solution. To do this, we will first find the derivative of y with respect to x, which we denote as y′.
Find Derivative of y: The derivative of y with respect to x is found by differentiating each term of y=−32x+91 with respect to x. The derivative of −32x with respect to x is −32, and the derivative of a constant, 91, is 0. Therefore, y′=−32.
Substitute y and y′: Now we will substitute y and y′ into the given differential equation to see if it holds true. Substituting y′=−32 and y=−32x+91 into the differential equation y′=2x+3y−1 gives us: −32=2x+3(−32x+91)−1.
Simplify Right Side: We simplify the right side of the equation: 2x+3(−32x+91)−1 becomes 2x−2x+31−1. The terms 2x and −2x cancel each other out, leaving us with 31−1.
Further Simplify: Further simplifying 31−1 gives us −32. So the right side of the equation simplifies to −32, which is equal to the left side, y′, which we found to be −32.
Verify Solution: Since both sides of the equation are equal, the function y=−32x+91 satisfies the differential equation y′=2x+3y−1. Therefore, y=−32x+91 is indeed a solution to the differential equation.
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