The graphs show the reaction rate for an enzyme across a range of temperatures and ph. based on these data, this enzyme functions best at what temperature and ph? *

Option B.

Step-by-step explanation:

In the first graph rate of reaction of the enzyme and temperature has been  graphed.

By this graph at temperature 37°C(Below 40°C) rate of reaction is maximum.

Similarly, in other graph rate of reaction and and pH has been graphed.

At pH = 6 rate of reaction is maximum.

By combining both the facts Option B. is the answer.

step-by-step explanation:

it's 15

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.