A furnace delivers 8.0 × 104 btu per hour. how many kilocalories per hour is this?
1 answer:
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Answer:
OPtion 3 points
Step-by-step explanation:
See the attached figure.
As shown, we can notice that the coordinates of all the points are (-3,2), (-3,3), (1,4), (1,-4), (2,-2), (2,-4).
The figure will be a function if for each value of x there exist a unique value of y.
In the figure, for each value of x we have two values of y. So it is not a function. We need to remove any of ordered pairs that have same input values.
From (-3,2) and (-3,3), we need to remove one point.
From (1,4) and (1,-4), we need to remove one point.
From (2,-2) and (2,-4), we need to remove one point.
It means total we need to remove 3 points from this graph so that it will be a function.
So, the correct option is 3 points.
