Which two points satisfy y = -x2 + 2x + 4 and x + y = 4?

(0, 4)

This is because if you solve the right equation for y, you can plug it in and solve for all possible x values. 0 is one and it works the best. 

At a constant it will take one hour to travel 32 mi.at that speed it will take 1/2 hr to travel the remaining 16 mi.it will take 1+1/2 hr to travel the 48mi @ 32mph.so 1 hr = 60 min& 1/2 hr = 30 min1+1/2 hr = 90 min.there are 60s in each 90 × 60 = 3600 seconds.the real question seriously is he why are they driving so slow? ! lol.