Is the graphed function linear? yes, because each input value corresponds to exactly one output value. yes, because the outputs increase as the inputs increase. no, because the graph is not continuous. no, because the curve indicates that the rate of change is not constant.

If the graph is a straight line then yes it is and it would be because the input value corresponds to exactly on output value.

If the graph isn't a straight line or has an X value that is repeated then no

the answer is D: No, because the curve indicates that the rate of change is not constant.

Explanation:

b is dominant over the allele for the white fur.