Yes all whole numbers are also rational number because they can be represented as a ratio of itself and 1, or as ratio of two other whole numbers.
For example:
4 = 8 / 2
4 = 4 /1
-3 = -9 / 3
1 = 1 / 1
3 = 3 / 1
The correct graph for the given sets of equation is given attached below.
Equation no 2 gives the perfect solution to the graph.
<h3>What is a parabola?</h3>
A parabola, is cross section cut out of the cone and represented by an equation 
Clearly, by property of the parabola, the curve of parabola should symmetric to its axis. From this property set of Equation (2) i.e. downward opening parabola increasing from negative 2 comma negative 3 to a maximum at 0 comma 1 and then decreasing through the point 2 comma negative 3 Holds the property of the parabola
Thus, the required solution for the sets of equation (2) is given in the attachment.
Learn more about parabola here:
brainly.com/question/4074088
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Answer:
I don't know the answer
Step-by-step explanation:
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