Which of the following is the graph of the function shown above? See file

The answer on PLATO is Graph Z.

Step-by-step explanation:

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Step-by-step explanation:

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To solve this problem you must apply the proccedure shown below:

 1. You have the following quadratic equation, which is given in the problem above:

 2y^2+6y-8=0

 2. So, to solve it, you can use the quadratic formula, which is:

 y=(-b±√(b²-4ac))/2a

 a=2
 b=6
 c=-8

 3. When you susbtitute these values into the formula, you obtain:

 y1=-4
 y2=1