Fourth time posting this please help!

The degree of a function determines the most number of solutions that function could have and the most number often times a function will cross the x-axis. As a result, sometimes the degree can be 0, which means the equation does not have any solutions or any instances of the graph crossing the x-axis.

-2, -1, -5, and -40 cross the x-axis while your positive numbers do not.

Th relationship is linear because  H increases by 30 each time t increases by 1.

Step-by-step explanation:

H is linear if it changes at a constant rate per unit interval. In other words, constant differences in t should correspond to constant differences in H.