Which method should be used to solve the system? Explain your answer, including a description of the first step.x2 + y2 =1-10x + 9y =2
What will be an ideal response?
Substitution should be used, because using elimination would mean introducing an xy-term into the second equation unnecessarily. The second equation should be solved for x or y.
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Solve the initial value problem for y as a function of x.(x2 + 4)
= 1, y(2) = 0
A. y = 
sin-1 
- 
B. y = 
tan-1 
- 
C. y = 
- 1
D. y = 
tan-1 
Translate to an equation, then solve.The difference between two positive numbers is 20. One number is three times the other number. Find the numbers.
A. 30 and 50 B. 20 and 30 C. 10 and 30 D. 10 and 20
Graph the rational function. Give the equations of the vertical and horizontal asymptotes.f(x) = 
A. x = -2; y = 0
B. x = 2; y = 0
C. x = 2; y = 0
D. x = -3; y = 0
Provide an appropriate response.What must be done to the dividend before beginning the "long division" process for (2x4 + 9x2 + 5x3 + 7x + 6) ÷ (7x + 1)?
What will be an ideal response?