If ab is 300%,what is the length of a line segment that is 100%

Which of the following is true for the relation f(x)=2x^2+1

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2