This type of problem is an exponential graph. In this type of problem one has to walk through various steps before one can ultimately graph the equation. First one must find the numbers that match up to the variables A, B, etc. Then one must remember the chant Y-int equals and X-int equals. Remember to set the y is equal to zero and the x as well.
After this is done one needs to plug in the equation into the graphing calculator and examine the curve of the graph. In the case of this specific problem since the a is negative the graph will curve downwards. Trace different points to graph and then finally graph your exponential equation.
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