Matthew is running a study on the effects of room temperature on performance on an algebra test. one group takes the test in a room heated to 90 degrees, and the other group takes the test in a room with normal room temperature. what is the independent variable?

Independent variable is temperature

Explanation:

An equation has this form:    Y= f(x), where Y is dependent variable andX is independent variable.

In this case Y ( Dependent variable) is Perfomance in test, an it depends on x(Independent variable) wich is temperature.

the answer is b) 2nd

hope this and plz mark as brainliest!

answer; i believe the above is false;