Q. ay=2x+1y=2x+2Consider the system of equations, where a is a constant. For what value of a are there no (x,y) solutions?
Identify Inconsistent Condition: The system of equations is given by ay=2x+1 and y=2x+2. To find the value of a for which there are no solutions, we need to look for a condition that would make the system inconsistent. This would occur if the two equations represent parallel lines, which means they have the same slope but different y-intercepts.
Convert Second Equation: The slope-intercept form of a line is y=mx+b, where m is the slope and b is the y-intercept. The second equation is already in slope-intercept form with a slope of 2. To compare it with the first equation, we need to express the first equation in terms of y.
Express First Equation in y: To express the first equation in terms of y, we divide both sides by a to get y=a2x+a1.
Set Slopes Equal: Now we have y=a2x+a1 and y=2x+2. For the lines to be parallel, the slopes must be equal, which means a2 must be equal to 2. Setting these equal gives us a2=2.
Solve for a: Solving for a, we multiply both sides by a to get 2=2a. Then we divide both sides by 2 to get a=1.
Analyze Solutions: When a=1, the two equations have same slopes and different y-intercepts, which means the system has no solution. Therefore, for a=1 there are no solutions for the given system of equations.
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