How do you graph and solve and tell whether it is linear or not ?
y= -x^2+1

Graph by plugging in points like x=1, x=2, x=3, x=4 until you can see a pattern

linear equations are only when the highest power of x is 1
for example  y = x + 1  is linear

but since this contains a x^2 it is a quadratic, Not Linear

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.