Provide an appropriate response.When using the substitution or elimination method to solve a system of two equations, you end up with an equation stating 
What does this indicate to you about the system of equations?
What will be an ideal response?
Answers may vary. One possibility: The system has dependent equations. In other words, every solution of one equation is also a solution of the other, so the solution set is an infinite set of ordered pairs. We write the solution of a system of two dependent equations as an ordered pair by expressing one variable in terms of the other.
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Find the derivative of y with respect to the appropriate variable.y = cosh-1 2
A. 
B. 
C. 
D. 
Evaluate the expression. 
A. 7920
B. 330
C. 
D. 1,663,200
Determine whether there is a maximum or minimum value for the given function, and find that value.f(x) = -2x2 + 3x + 7
A. Minimum: -5
B. Maximum: 
C. Maximum: 
D. Maximum: 0
Solve the problem. Write ratios in simplest form.Find the unit price for each option. Which is the better buy? 20-ounce bottle of pop for $1.60 40-ounce bottle of pop for $2.80
A. 20-ounce bottle: $0.92 per ounce; 40-ounce bottle: $1.07 per ounce. The 20-ounce is the better buy. B. 20-ounce bottle: $0.08 per ounce; 40-ounce bottle: $0.07 per ounce. The 40-ounce is the better buy. C. 20-ounce bottle: $0.07 per ounce; 40-ounce bottle: $0.08 per ounce. The 20-ounce is the better buy. D. 20-ounce bottle: $0.20 per ounce; 40-ounce bottle: $0.07 per ounce. The 40-ounce is the better buy.