Question

Which direction does the graph of f(x) = (x − 3)(2x − 5) open?

Up
Right
Down
Left

Answer 1

If you FOIL this out you'll get a second degree polynomial which is always a parabola. If the leading coefficient is positive both tails go up. Ours is positive so it opens upwards. A "y = " polynomial opens up or down while an "x = " polynomial opens sideways (right or left).

Answer 2

Up

X= 1,2,11/4,4,5
Y=6,1,-1/8,3,10