Objective function f(x, y)=x+6y. constraints x> 0, y> 0, x+y< 2. find the maximum and minimum and where they occur

Look at attachment. has all info needed. need

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

The only way to identify an intercept is as an ordered pair. true false