Provide an appropriate response.Explain why the solution of a system of equations is the point of intersection of the graphs of the equations.
What will be an ideal response?
Each point on the graph corresponds to an ordered pair that is a solution of the equation. The point of intersection of the graphs of two lines corresponds to an ordered pair that is a solution of both equations and, hence, a solution of a system of equations.
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Find the indicated derivative.Find y " if y = -7 cos x.
A. y " = -7 sin x B. y " = 7 sin x C. y " = 7 cos x D. y " = -7 cos x
Perform the operations indicated. Write your answer in simplest form.3 - (-2)
A. -1 B. 1 C. -5 D. 5
Provide an appropriate response.Explain how the equation log x = 1 could be solved using the graph of f(x) = log x.
What will be an ideal response?
Solve the problem.For children aged 5 to 15 years, the number of hours watching cartoons per week can be estimated by the function 
where s is the age of the child. Find the domain of the function.
A. {
x is a real number}
B. {
2 ? x ? 13}
C. {
5 ? x ? 15}
D. {
1.1 ? x ? 13}