(b) The graph of a parabola passes through the points (3/2,4/3) and (0,-6) and
has a horizontal tangent line at (3/2,4/3). Find an equation for the parabola
and sketch its graph.

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.