Solve the system by graphing.x = 2y = 1
A. (2, 1)
B. Infinitely many solutions
C. No solution
D. (1, 2)
Answer: A
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Write an equivalent double integral with the order of integration reversed.
A. 
B. 
C. 
D. 
Sketch a graph of the rectangular equation. [Hint: First convert the equation to polar coordinates.]
 figure 1.png)
Provide an appropriate response.If we apply the quadratic formula and find that the value of b2 - 4ac equals zero, what can we conclude?
A. The equation has one rational solution. B. The equation has no real solutions. C. The equation has one irrational solution. D. The equation has two rational solutions.
Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set.-7x - 87 = 9y-4x + 4y = 4
A. {(-7, -4)} B. Cramer's rule does not apply since D = 0; ? C. {(-6, -5)} D. {(-6, -4)}