Provide an appropriate response.Why is the line that forms the boundary of the solutions of an inequality part of the graph of the inequality when the inequality symbol is ? or ? but not when it is < or >?
What will be an ideal response?
For an inequality ax + by ? c, the symbol ? means that the graph consists of both the line 
and the region 
The graph of ax + by < c does not contain the line 
A similar explanation can be given for ? and >.
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Determine if the given ordered triple is a solution of the system.(4, 3, -3)2x + 4y + z = 175x - 5y - z = 85x + y + 5z = 8
A. solution B. not a solution
Consider the given graph.
(a) Determine the number of vertices of the graph.
(b) Determine whether the graph is connected.
Solve the problem.The population of a particular country was 21 million in 1984; in 1999, it was 31 million. The exponential growth function 
describes the population of this country t years after 1984. Use the fact that 15 years after 1984 the population increased by 10 million to find k to three decimal places.
A. 0.036 B. 0.154 C. 0.026 D. 0.432
Make the indicated conversion.Jeremy can stand on one leg for 1.3 min. Express this time in seconds.
A. 42 sec B. 54 sec C. 66 sec D. 78 sec