Question 1106793
An insurance company is using the formula y=0.009x^2 -0.90x+27 to predict the number of accidents per million driving miles (y) for drivers of different ages (x) between 16 and 70.
graph this equation
:
{{{ graph( 300, 200, -20, 80, -10, 40, .009x^2-0.90x+27 ) }}}

 At what age does the model predict the fewest accidents
Minimum occurs at the axis of symmetry y = -b/(2a)
y = .009x^2 - .9x + 27
therefore 
y = {{{-(-.9)/(2*.009)}}}
y = {{{.9/.018}}}
y = 50 yr old guys have the least accidents!!