Final answer:
The proposed solution of x = 3 weeks and y = 9 feet does not satisfy the given linear equation y = 9 + 3x. When substituting x with 3, the equation yields y = 18, not y = 9, indicating that the proposed solution is incorrect.
The right answer is a. x = 3 weeks; y = 9 feet
Step-by-step explanation:
The solution to a system of two linear equations is given by a pair of values for x and y that satisfy both equations simultaneously. In this scenario, the solution provided is x = 3 weeks; y = 9 feet. To determine if this solution is correct, we can plug these values into the given equation y = 9 + 3x.
If we substitute x with 3 weeks, we'll obtain:
y = 9 + 3(3) = 9 + 9 = 18. This result does not match the provided y value of 9 feet, implying that it is not the correct solution. Thus, option a that states x = 3 weeks; y = 9 feet is not the correct solution for the given system of linear equations.
Without other equations provided, we can't definitively solve for the correct values of x and y, but we can confirm the given solution does not satisfy the equation.
The right answer is a. x = 3 weeks; y = 9 feet