This is hard to solve when we don't know the visual graph this question is trying to refer from
Convert mixed number to improper fraction:

64=-4+4x
64+4=4x
68=4x
68/4=x
17=x
Answer: The r<span>-value for the linear function related to the ordered pairs is very close to zero, so it is not a good representation of the data. A quadratic model would better represent the data because there is a turning point within the data set. The data increases then decreases, which is what the graph of a quadratic does. </span>
Looks like you are missing a fraction after the 'If'