What is the range of this function ?

If we are only using the values in the table, then the answer is D. 

This is because the highest value of y is 40 and the lowest is 37.75. So we must know that y is between these two. 

However, if we are using this table as a long term model, then C is the correct answer. We know there is 40 to start and it will continue going down until it hits 0. 

I’m going to infer you said parallel.solve for yy= -1/2x+7/4lines that are parallel have the same slope, different y intercept.so we know m is -1/2then from there solve for y intercept.

Idon’t know what the answer is i wish i could