Please Help!! Step by step Here is an explanation:
t on x-axis coz it's independent variable and c , cost is depending on t so it will be on y axis Now keep different values of t you will get corresponding values for c according to the function rule. Then graph the equation if you can't give me the two points you found Ex: (1,2) . Function notation means function in terms of t.. f(t) = 2t +3.

Thanks